Simple concept, great execution.
its just pushing some boxes, but it really makes you think, there is obviosly a LOT of work put into the level design for it has at least only ONE solution (for the first 9 leveles at least) forsing you to think ahead of you to solve each puzzle.
The grapics are cute, i really like 'em, the duck is adorable and the "low polish" texture of the enviroment is really fitting for this game,really nice work