I am playing the GB version. It's a really nice game! Loving the music and sprites! Puzzles so far are quite good too!
I am playing on my DSi using gameyob emulator
However, I have a couple issues
Title screen is broken (1st picture) but after that, it's fine so it's okay
My other issue is that the game crashes after the tutorial when going back to the beginning (2nd picture). It happens going either way, bottom or left.
About the title screen, it's really likely a Gameyob issue since everything is fine on my phone emulator
About the crash, I don't know, I will try to move the save to my phone/computer to test
EDIT : After further testing, it's indeed a Gameyob issue because everything is fine on vba-m on linux
EDIT2 (sorry) : Tried Lameboy on the DSi, title screen even more corrupted but no crash !!