all secret levels on sonic 2 with boss fights beta and prototype levels
HTML-код
- Опубликовано: 19 авг 2009
- twitter / kakoroto1
steam steamcommunity.com/id/kakoroto
all beta and unfinished levels (hacks) hidden palace zone dust hill genocide city wood zone and death egg 1 and 2 the link to download the game is
info.sonicretro.org/Sonic_2_Lo... 
Игры
I absolutely love how the first act of the *FINAL* Zone in the game was moved to part of the *SECOND FRICKING ZONE*
The second zone was originally the final. For some reason.
This is all fanmade guys
No swearing
@@BrianTwo he isn't swearing
@@BrianTwo you do realize a lot of us are adults and teenagers, right?
Alright, what people need to understand about these "lost levels" is this,
(Will be further updated in response to others. And yes lots of research went into finding all of this)
All this gameplay is from sonic 2 , long version, a fan rom hack from 2004.
*wood zone: sonic 2 (1992) was going to have time travel, later used in sonic cd (1993). so wood zone was the past version of casino night, NOT metropolis like many people think. only the first 10 seconds are "real" in the beta, everything else, fan made.
so we never actually get to play wood zone, except for the 10 seconds of it in the beta, again the artwork is real, but it was never finished. this is the one zone, that was never completed.
*genocide city: this basically became metropolis zone act 3. game play wise, it was reused for act 3. background theme wise, look at the machine level, from sonic spin ball (1993) that is what genocide zone would have looked like. the artist confirmed it himself. ALL OF THIS GENOCIDE CITY THAT U SEE, IS FAN MADE. so it got divided, metropolis act 3 is the game play, the machine level in spin ball, is the artwork for it.
We don't really know why sega changed it. maybe the name genocide city made sega cut the name out , and turn it into metropolis act 3 instead. It was also called cyber city at one point.
*Hidden palace: later completed in the sonic 2 mobile version (2013) you can also play the original incomplete version if u like which is also in the sonic 2 beta. most of this is fan made in this video, but it looks identical to what it would have been like.
the point of this level was for sonic to go super sonic, upon going super sonic, the music would switch from mystic cave act 2, to this track 10 song. all this was of course cut. and only parts of it remained in the beta. sonic simply goes super sonic after collecting all 7 emeralds with no explanation given in the game.
*dust hill: only existed in one magazine ad for the game. a mock up drawing if anything. from what i can tell, there never was a dust hill level to actually play. sonic mania (2017) made the level real for the first time, mirage saloon. They were planning to bring this level back initially in sonic cd, desert dazzle, but that was scrapped.
*death egg: never existed. this is just fan made. We play in death egg zone in sonic and knuckles (1994) anyway so. sonic 2, just has the 2 bosses back to back, no death egg zone. People just assume because there are no rings in the final level, that maybe a zone was cut. There is no proof sega cut any level here.
that is the full story behind these.
Blaze up yup
Thanks for the explanation kind sir
Blaze up MY NIGGA YOU GOOD
Dust Hill was going to be Emerald Hill bad future
Blaze up
A. What about snow hill it was also scrapped
B. It was never going to have time travel
As a kid listing to the Hidden Palace theme music in the sound test screen, it made my imagination run wild. We never knew where it was from in the game, since you never see a level where it's played. My friend Josh taught me about the level select screen and the debug code. I had so much fun with this game. Still one of the best ever made. Sonic 3 & Knuckles and it's epic story is my favorite game of all time I think.
I also thought the same thing when I was little
In mystic cave zone act 2,go to the pit that needs a bridge access. And fall into the pit,BAM!! You found hidden palace
@@Gacha_Nazrinofficial but for the proto palace you need to play those in sound test in order
01,09,09,02,01,01,02,04 and you should hear a ring chime
Then after this play 03,03,03,0B,10,10,10,04
And you should hear another ring chime
Then go to hidden palace and you will play the the original proto palace and not that one in the pit
@@Gacha_Nazrinofficial thats in the mobile version.....
that "you're about to drown" music always terrified me as a younger child Lol.. and it still kinda does Lol
Agreed same here same as the victory music always makes me happy
I dance to it
@Gabriel Debastiani stfu
Aim great video no u?
@@chilliorganism lmao wat
Genocide City Zone was supposed to be a single act, and was replaced with an extra Act for Metropolis City (which is why it's the only zone with 3 acts).
Josh B and what a shitty zone to even have more than one act. Screws and fucking mantis badniks are the absolute worst thing in the game.
Wrong, in the 2013 re-release Hidden Palace Zone is "hidden" in a pit and it has one act and a boss. But since in the original it wasn't complete, they decided to give Metropolis Zone one more act.
Sugoi Variety Hour You left out those Star things that would break into spikes
Josh B cool
Technically, they based it off of how Scrap Brain's 3rd Act is under Labyrinth. (Recolors)
And by 'technically,' I mean from a technical standpoint.
i dont know why they didnt include some of the levels they left out - they are very good
Didn't excpect to see you here SB737
@@forage3038 this was 9 years ago of course you didn’t expect him
Wow! Popular RUclipsr!
Hello sb my whole family is a fan of you we all watch you all day
Wow didn’t know you liked sonic
it's kinda cool that someone restored chemical plant zone . For anyone unaware, chemical plant was supposed to be death egg zone, which is why act two has some really bullshit sections.
DeadTurret finally someone actually did his research
I remember playing through Chemical Plant Zone as a kid thinking "this feels like it should be way later in the game", especially the flipping platforms just before the boss that almost always caught me off guard.
No wonder y cp is so bullshit
I really hated chemical plant zone coz it was hard
To be honest I hate chemical plant in mania
Chemical plant... IN THE SPACE!
Kazu NextDream death egg... IN CHEMICAL PLANT!*
Kazu NextDream Chemical plant confirmed fo Mario Galaxy 3
I'm just joking
you were joking, bu now I NEED IT
Kazu NextDream in space not in "the" space
Lieuwe Krol in the space sounds funnier xD
I like how the clouds and moon in the Genocide City zone make it seem like a giant eye is creepily watching you the whole time.
I wish it was real and not fan-made. It's such a cool concept.
"That's no moon... It's a space station."
Genocide City is such a Darkwing Duck level!
I am the terror that flaps in the night!:D
Let’s get Dangerous
Its gothan city
Its fan made. The actual Genocide City became act 3 of Metropolis zone, and the art style was used in the machine level of sonic spinball
Hidden palace zone looks pretty beautiful for the time. It perfectly simulates a 3D depth.
A lot of effort gone into that zone by the artists, Truly a shame that all the effort was smashed into dust.
But hey, at least it was revived in 2013, right?
@@anon.9303 yes
hill zone
@@Deadchannel42267 what
plant zone
5:20 does anyone agree that everything under water looks like its from somic mania?
Yeah Sonic’s color palette underwater there looks like Sonic in Sonic mania
Yeah it does look like SOMIC mania lol but it does
Wut about genocide city
Genocide city more like Gotham city stage one
This game is Sonic 2 long version
🔫
Alert:everything you see IS FANMADE
@@thegamer-cy9dp 1 wood zone was not fan made 2 hidden palace wasn't fan made either and cyber city was not fanmade EITHER
Am sonicman
"Genocide City Zone" - lol wow Sonic 2 was dark.
Sonic 2 producers didn't know what "genocide" meant, and they thought the name sounded cool.
+Mortis Dredd I think it was someone translated it wrong to them. They thought it was like dark or evil or something like that.
Mortis That's why there were dead bodies hanging
Jez. like sonic CDs secret sound test picture
Later in development it was renamed to Cyber City
To clarify,THIS IS A ROM HACK!!!
No shit.
@@TabbyGa_ it is a rom hack *Genocide city and dust hill have there assets back While in sonic 2 it’s just a void using emerald hill and chemical plant *wood zone and hidden palace and the other zones is finished * death eggs had its own act
@@lancecruz74 yeah I know. Learn the definition of “No shit”
Ok the Hidden Palace zone I played was way longer, had a different boss battle and used the music played in Dust Hill... Eggman played a big trombone that summoned spiked bombs that you had to dodge and avoid the explosions. Then he'd play again and a giant spiked bomb would fall, which you needed to bring under his vehicle in order to knock his vehicle down with the jet of water the explosion would make. Then you could hit him once or twice. If you tried to hit him any other time he'd dodge you by flying up. I actually found that to be the hardest boss battle in Sonic 2 because you really needed to pay attention to timing.
ZacharyT94 that is only on the iOS and android versions made by Christian whitehead, the special stages in that are full 3D too
ZacharyT94 So the iOS Android version?
The Rare Mobile Gamer Yeah, I tried on the PS3 remakes, different version.
ZacharyT94 fuckin hell these sonic noobs HAVE YOU NEVER HEARD OF SONIC 2 GENESIS
Woof you
Using noob as an insult in 2017? Seriously?
Boss of deleted zones
Wood=Aquatic ruin
Genocide city=Chemical plant
Hidden palace=Mystic cave
Dust hill=Emerald hill
Bosses in deleted zones were similar of that levels but it was little difficult
that last one "death egg" is just chemical plant with a different background
jamst3r99 its a rom hack
+jamst3r99 I know right?
+jamst3r99 it makes more sence though
+jamst3r99 it makes more sence though
+Diamondpinkiepie how?
as an adult that played the original sonic games as a kid that drowning sound still gets my fucking heart pumping
GENOCIDE CITIY ZONE.....wow sonic 2 is no joke
They used genocide because they thought it sounded cool.
But they changed it to "Cyber City" due to the original definition of the word "Genocide". Still, of course, got scrapped from the final release.
I always like to play wood zone when I wake up in the morning
Does this only work on the The Genesis
0:46 when tails lost his wallet he finds it in the bottom of the tree
I've always had that wood zone theme stuck in my head and wondered what zone it's from. Now I know
You're an idiot. It's emerald hill 2 player, not fucking wood zone! SONIC 2 LONG VERSION HAS BRAINWASHED YOU PEOPLE! Wood zone never used this music, it used metropolis zone's music.
it's used for emerald hill in 2 player competition in the official release
5:42 WARNING FOR HEADPHONE USERS:ear rape
Eduardo Ruiz Alonso Oh. My. Distortion.
I heard it to
🤣🤣🤣🤣
4:16 (presses the Easy Button)
JesseRoxII
Why do I see you literally everywhere?
I found hidden palace before. It's probably HIDDEN in mystic cave zone. Get it? Bc the zone had hidden in it
And I think dust hill was inspired to Mirage sallon in sonic mania
Ahem why do you keep on popping out on everything I press?
I think it's cool seeing the forgotten levels in this game
Fun fact: some dev I. SEGA chose the name Genocide City because they thought it sounded cool, and it was probably changed to metropolis zone because the learned what genocide really means.
The way it was changed into metropolis zone because genocide city was the past of metropolis zone because robotnik took genocide city in the past and makes genocide into a metropolis
Thanks for giving the download link! Most people don't usually don't do that, I appreciate it.
4:33 that stage looks majestic. Animators do that every now & then I know their is hidden symbolism, something they're indirectly showing us. (to me personally it gives me an idea of heaven- not saying that's what it looks like to me but just an idea, the stage looks too perfect in that part especially) I've seen patterns of things like that in a lot of games.....
4:33*
@@joylinefurtado8188 when this person made that comment timestamps didnt exist tho
I watched this for a minute before realizing I didn't recognize the level.
I want to play it now lol
Just clarifying that these are fanmade, Genocide City was a translation error and wouldn’t have looked like that
But hidden palace appears in the mobile version of Sonic 2
@@latzladanyi7369 yeah, we know
Ahhhhhh the infamous Hidden Palace Zone!
how come on the mobile version of Sonic 2 that the hidden palace zone has the mystic cave zone 2 theme
dunno bit hidden palace zone on this video has the right music
+Brady Harper Hidden Palace in the beta used the Mystic Cave 2 player theme. The unused track has just been assumed to be used for Hidden Palace.
Do any of you know how to get that zone anyway
+Rodrick Rios If you jump in the inescapable pit of spikes in zone 2 of Mystic Cave, you`ll fall in to the Hidden Palace Zone
+Brady Harper It's because Hidden Palace was only originally available in the Japanese version of Sonic 2. However you can access the true unfinished Hidden Palace in the US version known as Proto Palace via sound test and debug mode cheats.
2:48 Sonic & Tails in Gotham City!
This is my favorite Sonic game on Megadrive. I've finished it dozens of times and I'll play it again, everything is good in this game, the music, the atmosphere, the graphics, the fun.
Cor prat wants you to find the difference between these 2 pictures: chemical plant zone and Death egg prototype
Everyone: they are the same picture
Space Chemical Zone. Huh. :P
Ethan Bylsma
Pretty much
Better than the one on EARTH.
Goodness I hate that water through the whole level there.
My theory behind Death Egg in this version being Chemical Plant in space is that it's supposed to be that you're infiltrating the exterior of it in the first act.
Nice hack, but you forgot everyone's FAVORITE unused zone: Rock Zone.
...
Real creative, Sega.
+Daniel Cogan To be fair, Rock Zone (along with Wood Zone) were just placeholder names lol
Hey! And what about sand shower zone?
@@eddo_2169 changed to dust hill.
@@hl5217 i know, was just an joke lol
@@eddo_2169 but sand shower zone is a more creative name.
Thank you so much!!!! This is just what I was looking for. I am happy to play the zones and beta levels of the game. Thank you!!!
Not actual beta of the game. Wood Zone is barely done in the betas,Dust Hill is a mockup screenshot,Winter Hill is not real,Genocide City is Metropolis' Act 3 AND Hidden Palace wasn't finished either
Rest In Peace TAILS everytime in this game
Lmao 🤣🤣🤣
wood zone is aquatic run zone and city zone is chemial plant zone hidden palace is mystic cave!
2 Kafa GT: hidden palace is hidden palace I played the game
Whoever made this hack really oughta swap Hidden Palace and Dust Hill's music with each other.
1) Hidden Palace in the 2013 re-release has the Mystic Cave 2-player music.
2) Well, Dust Hill just fits better with the unused music. Sounds like a desert theme.
The point of the hack was to use what was left of the original zones and recreate them as accurately as possible (excluding Death Egg zone and the bosses). The music used in the hack for Hidden Palace was the original track intended for the zone, which is why it is still in the real version of Sonic 2 (hidden palace was the only scrapped zone to make it into beta, so by the time it was scrapped, they had already implemented the sprite map and soundtrack into the game).
JesseRoxII Also, the hack was exist before Sonic 2 Remastered exist.
The bugged Hidden Palace in Sonic 2(Original) plays the Hidden Palace music of this hack.
JesseRoxII I think the slow music for hidden palace is great.
That’s like saying Green Hill Zone sounds better in Scrap Brain Zone, to me...
All these years of playing Sonic the Hedgehog 2 and I NEVER found out about these secret levels.
I gotta say, whoever was in charge of the custom graphics for Genocide City Zone sure is one helluva sprite artist.
This is a fan-made ROMHack to show what the levels _could have_ looked like.
GFY
Koutanya Long version? I just played long version and i get a WOOD ZONE
No this _ hi _ without spaces
_like_ _this?_
Duckster SonicFan Yeah.
_E_
I love Wood Zone and Dust Hill... I wish some versions of those had made it into one of the games.
Well Dust Hill made it in Mania
I know this is fake but I like how you made wood zone actually playable!
Wood zone is a beta zone from sonic 3, and that actually improved it. The collision was broken. Genocide city was also a beta zone from sonic 3, meant to be like scrap brain zone, but better. It never actually got past the concept though. Hidden palace was actually added in, on the mobile port of sonic 2. And death egg.. I don't have to say anything other than 'no.' As for the desert area, that made it into sonic mania.
That desert zone is actually not even unused its unused in NOT EXISTIMG ITS FAN MADE
3:37 are those corps hanging from the wall?
a family picture
Oh dear God they are.
Corpse. Corps means a military subdivision, and is pronounced "core".
corpses*
soo Death Egg zone was originally Chemical Plant?, guess that explains why the boss rooms looked similar I suppose.
I hope you’re joking. If you aren’t, then be informed that THIS VIDEO IS SHOWING A ROM HACK.
@@BastianTheGreatestCreatorEver rom hack based on data located in the beta version of sonic 2 lol
@@ksdbinbin7389 okay then, please link me any proof that death egg originally had chemical plant levels
@@BastianTheGreatestCreatorEver do some RESEARCH idiot
@@BastianTheGreatestCreatorEver I think it's because the parts of Death Egg's walls have the same texture as Chemical Plant's texture
'Wood zone' boss is same as 'Aquatic ruin' boss. 'Genocide city' boss is same as 'Chemical plant' boss. 'Dust Hill' boss is same as 'Emerald hill' boss.
petrolhead0387 and...?
fan made!
Finally! After over 20 years I FINALLY know why that awesome unused song was in the sound menu. I feel a sense of contentment.
most of the songs are used in 2 player mode
"Genocide Zone" sounds pretty dark for a Sonic game.
"all secret levels in Sonic 2"
Well they aren't secret anymore!
this is a legendary video, been doing the rounds for years.
@Wanna Be a Smurt Person Trying If you cant tell this is a fan made game, then you'rev stupid as fuck.
you're*
4:31 I always knew about this song but only from the sound select screen
basicly, some "what would have been" levels, cool!
The hidden palace zone appear on the mobile version. It can be accessed in the mystic cave zone (act two, I think).
yes haha
by falling down what was once the inescapable spike pit
i discovered hidden palace on mt ipod as Tails
Chris Mike by falling to the pit that you couldn't escape
Jump in the "stuck pit" in act 2!
(Death egg zone act 1/2)
That guy who beat sonic 2: somethings wrong I can feel it...
Hey, welcome to the Wood zone!
Wow this guy got really creative with the debug mode.
isnt debug
It's Fanmade hack, mockup of the uncompleted levels.
Uses some of the left over unused assests (except Geneocide City, which looks fanmade), to create the desired effect.
Kingofturves I see what you mean. I remember watching it and thinking the Sega designers either wouldn't allow that normally or they were really slacking off. The name 'Genocide City' is disturbing, too.
jflow08 Genocide City was the name of a real planned level, the one you see in this video is just a fanmade mockup of what we think it could have looked like.
The assets
I think they didn't add genocide city is because,well it had hanging skulls in it
it was what hidden palace is in sonic 2
Foxclaw 529 Nobody has any real idea what it looked like, other than it would be a technology theme (they changed the name to cyber city after learning what genocide meant) This is just a fan's idea of what it looks like
Yeah, this is fan made. SEGA never released gameplay of these zones.
Those were bodies.
I love how these scrapped zones have the themes of emarld Hill zone mystic cave zone and casino night zone from the multi-player mode of sonic 2 all except for hidden palace zone and death egg zone witch is literally just chemical plant zone but in space
Apparently Sonic 2 was meant to be a time travel story
But then they changed it to the story we have now
Dust Hill or New Hidden Palace's theme was for a Desert level, and Sky chase's theme was for a Snow level
i think the levels look ok... dunno why everyone is hating
expect death egg.
just CP with a different background
+FLOWMOTIIION I hate wood zone so easy to fall
Jason Goldman what about genocide city zone and hidden place and the others ... isn't those are a good levels ?
THEY DONT FUCKING EXIST OUTSIDE OF CONCEPTS AND BETAS FOR FUCKS SAKE
Woof you DUDE, *JUST ******** *STOP* OK? JUST YOU ARE HATING EVERYONE JUST FOR A GAME?
death chemical egg plant zone
8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Death plant zone
This is recommended to me 11 years later
Sonic 2 is one of my favorite sonic game of the 1990s what a throwback
0:14 Eggman poops? #whatthe
Lol
Lol what
LOL,FUNNY!!!🤣
Where
r/youngpeopleyoutube
Hidden Palace is on mobil version
Interesting how the bosses here are pretty much the same as Aquatic Ruin, Mystic Cave, and Emerald Hill.
AWESOME more sonic levels
3:37 Yeah... those skeletons are for Kids! +7.
Pensamiento 0 3 year old comment, but this is not at all what genocide city would of looked like. Check the top comment
Shit that's horrible 😟
is it just me or does genocide city not load properly when selected.
The title card shows up but the level doesn't load
Sonic 2 is not a 2015 game. The level was scrapped and made into a cybernetic level in Sonic Spinball AND Metropolis' Act 3. The stage on the actual game is unused garbage,just like Wood Zone (actual sonic 2) and Hidden Palace (actual sonic 2)
I just realised how similar the two 'Hidden Palace' themes are.
I have to say I like the music for Hidden Palace zone two! I wish these levels were incorporated into the SEGA Genesis games in the 90’s.
I would have liked all these levels in the game but Sega has its reasons
These aren't secret, they are unused levels from sonic 2 beta, also most of this was fan made
Genocide city zone- basically a city being genocided, while calm music plays in the background.
"Genocide City Zone"?
Jeez, things quickly took a turn for the fucked up beyond all reason.
"Genocide city"
That seems a bit counter intuitive
Producers of Sonic 2 though that "GENOCIDE" was a cool word and used it.
It was changed to CYBER city and GENOCIDE City got scrapped and never got used. Oh yeah and in the Japanesse version "GENOCIDE" city was named CYBER CITY. They also changed the name DUE TO the defintion of the word "Genocide" thank meh later
@@jenniferbarangan1502 they still used *death* egg tho... _genocide_ and *death* mean pretty much the same thing except *death* is the term used when or after someone dies, and genocide is used when someone commits murder and causes *death* and makes someone die
Now I wanna plau genocide city just because of the name
animal robots genocidee :v
Mistranslation
Undersonic confirmed!
ITS TIME TO STOP
firebat128 Genocide city is actually metropolis zone act 3 the developers thought the word genocide meant robot but they found out the true meaning of it and renamed it
Fun fact : did you know that genocide city is a creepypasta
Really? I think it is a creepy pasta because it's owned by sonic.exe I guess?
always loved the hidden palace zone music.
I have serious doubts about these levels especially since they recycled the music from another stage
Well... they have original songs but they were unused so they put in 2player mode also the hidden palace song was not recicled
When you realize "Wood Zone" is Knothole
The death egg was originally long, but was changed to into chemical plant. That's why the death egg is short.
I hated trying to complete chemical plant it was so difficult, it makes so much sense that it was originally going to be part of death egg
Ugh... why can't Sega just continue these games properly? Sonic 4 tried but didn't capture the awesomeness of the classic games. Surely it can't be that hard or time consuming to make a Genesis/Mega Drive era-style game!
Oh making a game is not as simple as snapping your fingers and its done it requires a lot more effort
Aniket Bedade I know that. But with how much technology has advanced since the classic Sonic games, it's much easier to make a retro-style game that functions and plays just as well.
they just can't man. for whatever reason Sega had the magic touch back then. the controls, the music (especially sonic 3 wow) the atmosphere and the simpleness of these original sonic games is indeed too hard for sega to duplicate. sucks.
I remember back in 1995 thinking sega would just continue to make sonic games just like this ....boy was I wrong lol I was living at the very end of sonics peak. he hit the peak too soon. Sonic sucks ass ever since.
Blaze V. Yea... I completely agree. At least we'll always have the classics!
At least now they're trying to regain it.
You really should have clarified that these are all fanmade.
Hidden palace is real, and it is different from this one.
I played it, trust me.
hidden palace is real lol
You can play hidden palace on the mobile version of sonic 2
@@tapfever7102
Source(s)
Dude, trust me.
Since a lot of people don't seem to get it, I'll explain. These are just prototype levels, that's why they're in the extras and not in the main game.
Not extras,FAN MADE STAGES on a FAN MADE ROMHACK
Some of these soundtracks can be heard at the end credits of the original sonic 2
The level design is okay, The bosses just suck, And Death egg is just chemical plant in space.
. . .
Yeah, could of had a lot more effort put into it.
You're profile pic fits In with your comment :3
Rage7800 these are unfinished beta levels from Sonic 2 that got scrapped
They were unused and unfinished
explain 3:39
LOL I want to see Dr Robotnik's plans laid out as he builds his ridiculous machines. "This giant hammer will teach that hedgehog a lesson!!..."
Death Egg (the one showcased in this video) is basically CPZ with a palette alternation, a different background, and slight level changes.
Dang this is 11 years old thats pretty cool
SOMEONE PLS TELL ME why did they remove these zones?
i think it was either they didn't have enough time to put them on b4 release or there wasn't enough room on the game cartridge
kakoroto no there has to be another reason… THERE MUST BE (thanks though)
Soggy Android i don't think so…SEGA said they finish ALL stages...
Soggy Android DUDE!!!!! MY PROOF IS EVERYWHERE ITS COMMON SENSE LOOK IT UP!!!
Soggy Android YOU MEAN THE IOS/ANDRIOD VERSION YEEEEEEEEEEAAAH THATS SO FAKE
Were these actually on the game or did somebody hack it? I played this game on Sega Genesis and don't remember finding any of these even after applying the codes..
If you look in the game's files, some of the unused sprites and soundtracks from these zones are still inside.
+Sonic The Hedgehog not fully if you play track 10 it plays the Hidden palace music
They weren’t in the final version but in the prototype
Sadly, this is just a rom hack. No playable versions of most of these levels actually exists
They were cut from the final version duh yah bitch
Genocide city was big drop to death in sonic beta and one thing that keeps me questioning is if rom hack genocide city was actually what it was supposed to be if it was officially complete to sonic 2. It looks official from the level design and looks like what a genocide city should look like.
genocide city got renamed later in development to a more appropiated name : Cyber City. it also became Metropolis Zone Act 3 and a Sonic Spinball stage
genocide city is actually pretty neat!