This game is charming. The concept alone is great, and I like the silly voices.
There's some non-intrusive issues in all main aspects of the game - the SFX are a bit bland, there's place for music variety, the visuals do not look good (for the pixel guy, you should set his filter to "None" - this is pixel art in Unity 101!), and the game's a bit clunky, and a bit too repetitive.
The game's idea saved this game, imo.
Keep on fighting! :)