Heyo, it's Cats here. It's been a while, huh? Since game's cancelled I decided to publish debug version for you to play. It's early version of Round 2 (Amy/Cream/Sally) with almost full completed Cream route, half-done Amy route and started Sally route. You can access to new content through Numpad keys, so let me help you.
Num0 - Hidden Reality (a.k.a. Secret Gallery) as easter egg for Hill Zone
Num1 - Updated FKFKFK (added new enemies and etc)
Num2 - Rain Hill Zone (Amy) [Incomplete]
Num3 - Special Stage (Amy) [Full]
Num4 - Pinball Stadium (Cream) [Full]
Num5 - KINDANDFAIR (Cream) [Full]
Num6 - EVILANDUNFAIR (Cream) [Full, without unique ost]
Num7 - Relic Ruins (Sally) [Full]
Num8 - Showtime (Sally) [Proof of concept, done by @ShonnikRus ]
Num9 - Hell (Whiskers/Sonic.exe) [Extra Mode - Kill 'em all!]
Num[ / ] Key - Test Zone (Use 1-9 keys for characters)
Num[ * ] Key - Level Select (All levels from Round 1 are there)
Use these anywhere in game to access levels!
I need to warn you that I'm not responsible for any bugs in this version since I stopped supporting it!

Thank you for your attention and have a good time!