Contra Rebirth cheats and cheat codes for Nintendo Wii

Debug mode cheat:
Go to the title screen and press Plus + 1 + 2 to bring up the Debug mode menu.
Here you can find several extra options such as character, weapons
and stages selection options, sound test option and invincibility mode.

Unlock Tsugu-Min:
Finish the game on Easy difficulty level to unlock Tsugu-Min (robot)
as a playable character.

Unlock Plissken:
Finish the game on Normal difficulty level to unlock Plissken (lizard)
as a playable character.

Unlock nightmare difficulty level:
Finish the game on Hard difficulty level.