Duckmaze is a game about a duck that is in a maze. The duck can move walls, but only if there are no walls in the way (it makes sense when you try it).
It's a simple puzzle game which starts with easy levels but progresses to some quite tricky ones.
NOTE: At the moment, duckmaze only has 8 levels, and most of them are quite easy. More levels are being written, and the game includes a full level editor, so feel free to help out!
Duckmaze requires Python and PyGame, which you can download from here: http://wiki.gp2x.org/wiki/Pygame . There are more instructions on the duckmaze web site.