This is the sort of idea I imagined people might go with for the C3 Jam (I even started, and cancelled something similar myself.)
The graphics are quite nice, that's a plus.
The sound is nonexistant, both in audio FX and music, something this game sorely lacks.
The game-play is very simple in concept, however very difficult in practice. Games of this type aren't gonna last very long.
If this game had some audio (and maybe some more visual) feedback, I'd be inclined to rate it a little higher. However as it stands, where royalty free music is simple to find and using software like BFXR you can produce indie game quality sfx in minutes, it just seems weird not to have any audio in the game.