Perfectly Evil
It's great, the whole, "abusing turtles for our own amusement." idea.
The graphics were GREAT.
The power ups were probably my favorite part. The fancy goombas, the drunk driving guy in a jeep. and the SHORYUKEN banana sent this game over a 9.
The upgrades are a little too expensive, but they're there to keep you SERIOUSLY addicted.
All of the factors mentioned made it hilarious to play and to watch your little turtle friend get brutally shot out of a cannon and plowed into the ground by gravity. All the while being blown up, run over, and speared by various hazards.
If I could... 11/10
GREAT GAME. MUST PLAY!