Well....i don't like it. it's not bad, it's just so average. You need no skill, just hold down the button. The boss fights are just plain boring, and the fact that in every level you have to fight one boss twice isn't helping. The rocket launcher makes no sense and the restriction of the movement just makes dodging unessecary stupid. I give credit for the music and the tetris boss. Also why not playing with a laptop without mouse?? I played it this way, it worked fine.
Also: Undodgeable attacks are a bitch!!