Good game. I really like the music and the art. T he few levels offered here show a nice difficulty curve. Easy at first, but the levels slowly get tougher as new mechanics are added. I found the last 5 levels to be pretty tough. The last one is rough.
The game could use a tad more polish; as the reviewer below says, the level should restart automatically when you're in a losing condition, and some more sound effects would help. The controls worked pretty well, but I did find the movement to a slightly sticky. Nothing like a 2 second lag, but sometimes it seemed a bit slow,
The only glitch I ran into involved the mute button. If you restart a level when the sound is muted, the muting tuns off, even though the speaker icon still has a slash through it. You have to un-mute and re-mute to shut off the sound again.