Name: Zero The Kamikaze Squirrel
Platform: Sega Genesis / Mega Drive
Region: USA
Media: Cartridge
Controller: Gamepad
Genre: Platformer
Gametype: Licensed
Release Year: 1994
Developer: Iguana Entertainment
Publisher: SunSoft
Players: 1
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A spinoff of the Aero the Acrobat games, Zero the Kamikaze Squirrel is an over-the-top platformer that plays much like Sonic the Hedgehog. In the Aero the Acrobat games, Zero is one of the villains. However, this time around Zero is fighting to save his homeland from an evil lumberjack.

Hints:

Right, Up, B, A, Down, Up, B, Down, Up, and B - Enable All Codes
A, C, Right, A, and B - Level Select
B, Up, B, B, A - Unlimited Hit Points
B, A, B, and Up - Unlimited Lives
Down, A, and B - Unlimited Shurikens

http://www.gamefaqs.com/console/genesis/code/586625.html
http://www.mobygames.com/game/genesis/zero-the-kamikaze-squirrel