I broke the game too, immediately following thee puzzle where you are on the floor moving down with the laser above you, i went left instead of right, and there wasnt a wall from where i went, but i walked into and through the walls of previous levels. I thought it was intended to be an air duct to a secret, but i couldnt leave, as there wass a wall from this side
 "Crystal Story II"){kind=icon}
 "Elephant Quest"){kind=icon}
 "Dakota Winchester's Adventures - Part 3"){kind=icon}
 "Discovery"){kind=icon}
 "Caravan Beast"){kind=icon}
 "Infinity Inc"){kind=icon}