Finally i managed to complete my game (kind of). Known bugs and missings:

-memory management (after 20 stages, the app uses 1.5GB of ram :-o), to be improved

-no sounds. sorry, i didn’t have time

Altough it’s my first time in Ludum Dare, i’m very happy about what i’ve done.

Download: http://www.filedropper.com/ld26