Great game! Wasn't expecting much when I was looking at new flashes but I was pleasantly surprised to find this. I got so hooked into this game it was crazy. Just a couple bugs that I found:
1) Menu on time attack mode
When you hit backspace to go into your menu on the time attack stage it will take you to the menu but when you go back it will overlap the arena background (you can still move though)
2) Frozen game
When I tried to have Dynamo do his burst shot on the tier 1 boss the game froze.