Listening to FNF Mario Madness V2 Main Menu Theme got me like:

...
C'mon don't look me like that, I also enjoy silly stuff like this. Have you seen my most viewed video?
Anyways... Here are the credits:
Menu Theme Composed by ‪@Ironik0422‬
Used clips from:
The Super Mario Brothers Super Show Intro
• Mario Wakes up Next to... (Mario Wakes up Next to Miku) ‪@ultrabluekitsune‬
• Do The Mario! (Do The Mario!) ‪@JT90INTHEHOUSE‬
Artwork made by: (in order of appareance)
www.deviantart.com/charcoalman/art/MARIO-360965325
www.deviantart.com/stranger86/art/Hotel-Mario-The-13th-Hotel-469911490
www.deviantart.com/shadow-shana/art/Super-Horror-Mario-267993783
TaylorSwitch64/status/1533853170711273472
www.deviantart.com/hypno-scream/art/Every-Baddie-s-Nightmare-939153730
www.deviantart.com/sd5db6/art/MARIO-981243595
www.deviantart.com/taylorswitch64/art/Mario-Bros-VS-MX-Bros-910118255
www.deviantart.com/elisson24/art/Devil-Mario-vs-Sonic-exe-924493031
www.deviantart.com/elisson24/art/Devil-Mario-in-the-Friday-Night-921848256
www.deviantart.com/acstation206/art/Peppino-950710265
www.deviantart.com/meme-tastic420/art/pizza-tower-bluey-938166426

[@mobsquad6295]

Its pretty funny to me that theres just a random pizza tower refference in the song😂

[@BAMBISHERERUN.]

Imagine Misspelling reference lmfao

[@VeryCreativeHand1e]

Reminder some of pizza towers ost have some aspects from wario land ost

[@Razelithe]

@@BAMBISHERERUN. Imagine putting random capitalization on words that don't need it.

[@That0neCloud]

1:40 PIZZA!1!111!1!!1!1

[@andremoreno4543]

1:34 Everybody wanna Be a Super Star

[@wyattsaum272]

No wonder Mario’s mad he wears shoes to bed

[@user-eu2hn7rs5i]

LOL WHAT?

[@vicente201x_yt3]

Es como lo vi y escuche la 1ra vez, es una lastima que mi PC, no resiste un gran mod como esta Obra Maestra

[@Rayboy14-FNF]

Te entiendo amigo, yo tambien espere jugar este Grandioso mod pero tengo una PC Malisima.

[@Elchico9]

Nadie me invitó pero comparto ese mismo dolor 😞😞

[@ameliahenry5079]

0:34 is mario Bros super show rap and super mario Bros combined

[@Ramz460]

1:42 ITS PIZZA TIME!!!!!!

[@thisisnotahandle1337]

0:56 grand dad would NEVER hurt his friends.

[@blustickman0285]

Reminds me of the hypnos lullaby pokedex music!

[@thekingzhaul5914]

It actually follows the same pattern as that one, maybe there was some inspiration or its a nod to the fact Marco worked in that mod too.

[@Ironik0422]

​@thekingzhaul5914 I was asked to include the super show theme, in the same vain as the lullaby pokedex theme

[@Mr_Adrian20042]

Awesome!

[@kabbiraminmambelgiron-hb7np]

Que buen Soundtrack

[@michalpro370]

this menu music have one and olny this music have pizza time motif

[@Exefredbearp27735]

Got like me no party

[@Emerphantom]

1:04 I wanna know ho made this art

[@thekingzhaul5914]

Read the Description, its the fifth link.

[@Emerphantom]

@@thekingzhaul5914 thank you!

[@Emerphantom]

​@@thekingzhaul5914 and your video is good!

[@user-rg2bv1pf2g]

Pizza tower Mario Madness

[@thekingzhaul5914]

@@user-rg2bv1pf2g Yes there's a Pizza Tower leitmotif in the menu music for some reason, the art is in the description if you are curious.

[@BlackViAri]

Why mario screams on 0:37

[@vapreom]

I hear digital circus music 😭

[@That_onevamp2008]

Okay please timestamp where you allegedly heard “TADC music”

[@BlackViAri]

Why mario screams on 0:34