Mario & Luigi: Dream Team - Hidden loading zones

I found the data of the loading zones in the game's memory, so I decided to go through every single real-world room and check every loading zone (in the hopes of an Early Neo Bowser Castle). While I did not find Early Neo Bowser Castle, I did find these loading zones.
The loading zones in Somnom Woods allows you to bring Walk through Walls in the track room for what I believe to be the first time ever, though this is not very useful for Any% as it takes 11 Side Drills to get to the loading zone in the first place. It would be useful for a 100% category, though.
There are also about a dozen rooms which have a loading zone to room 0x00 (first room of Mushrise Park) however these loading zones have a hitbox of 0 units so you can't actually activate them. If you could activate the loading zones it would probably save time in Any% and definitely All Bosses because it would let us instantly go from, e.g. deep Dozing Sands straight into early Mushrise Park without any gold pipe or long walking.