Great music and even better puzzles. The puzzles have more than one solusion, witch i found great when other games try to go more for the one solusion path. The using levels mechanick reminded me of Patricks parabox.
it wouldve been nice if i couldve imitated parabox, but it wouldve added a level of complexity to coding that i couldnt have finished like remembering where abox was in the previous level so you could go between them
the transition going back in wouldve been hard enough
