Hahaha really enjoyed playing your game! The graphics are awesome and I think the rat ball monster idea is just brilliant and so well executed. Very cool character design! And nice cover art!
The game has a nice and unique vibe to it and the music and sfx are great - i would only change the shoot sound or make it less loud. Also i think it would be much more satisfying if you could shoot continuously imo.
The game was too easy for me, i haven't lost a single live for ages :D
All in all, awesome little game I really enjoyed playing! Congrats!