The best game from this jam that I played so far! Graphics, controls and feel , music, level design... And it's incredibly long and polished for a jam game! Still trying to complete it.
About the Gameboy Feel, aside from some punctual graphical effects, moving the player feels THAT good that doesn't feel much like a real GB game. But hey, I'm not going to lower the GB feel rating because of something is better than I expected. That wouldn't make any sense! :P
Just to tell something that could've been better, maybe adding some backgrounds, improve loading times between rooms (after a long time playing it seems to take more time to load) and adding a map or something to visualize where the player is in that huge maze. Also, I found myself in some situations where I wanted to avoid a checkpoint but there wasn't anything I could do to about it.
Great work! :)