Good game, but the music gets a little annoying so I had to mute it. Also, quests are 99% "kill this number of these enemies" which gets rather redundant aswell. Other than that, its a good game, 4/5.
I really, really wish that you could toggle your opponent. I get to the Jawbreaker Cyborg before I got 3 perfects in a row, and let me tell you it is a living Hell trying to get 3 in a row perfect on him. So a tip for newcomers, dont upgrade your opponent until you have completed the perfect start acheivements. Thumbs this up so people can see it.
Heres a handy tip: On the left side, the high part of the middle platform is high enough to dodge his laser, and you can attack him from there. Just don't stay there too long, or he will hit you with one of his beard attacks.