game progress is entirely deleted upon exit. This should really be fixed immediately, because i'm not about to redo all of the game after exiting at the second-to last chapter.
I also encountered a game breaking bug. At the cannon part, you're supposed to shift to the snail and pause time immediately after shooting it, but i couldn't press any buttons until after the cannon had returned.
And when i went back to the section on the left of the cannon, i couldn't get back up, basically softlocking me. The only way back would be to play the entire level again. This game is in dire need of a better saving system.