airumu: Crash Bandicoot 3 Warped Alpha – The Alternate/Secret Routes

Future Frenzy – It’s mostly the same as the retail version, but you can’t backtrack from the 2D section back to the first 3D section so it’s impossible to get a box gem.

Hang’em High – It has no objects.

In other tidbits: BetiroVal believes that Airumu did it, quotes him as the “Madman” who reportedly “managed to rip the unused future death route board from Crash Warped (alpha version) and implement it into Crash 2!”. No video is out yet about this development, but hopefully should be up given the activity of airumu.