GamingWolf, 
Jazz Jackrabbit
A green rabbit that moves like a hedgehog but he's got a gun.
You run around like crazy shooting enemies allied with your archnemesis, a tortoise. That's right. 90's radical aesop sci-fi, woah.
The music is incredible to say the least. Almost every stage is unique.
Collect lots of ammo for your guns. Find some secret levels and wander into special stages. I recommend the CD-Rom version for it's 9 episodes!