Unlimited Gas Mines:
Right, Left, Left, Up, Down, Right

Unlimited Super Bark:
Right, Left, Left, Up, Down, Up

Unlimited Ground-Pound:
Right, Up, Right, Up, Left, Down

Unlock all Game Levels:
Right, Up, Left, Right, Up, Right

Unlock all Mini-Games:
Right, Up, Right, Right

Unlimited Invulnerability:
Down, Down, Up, Left

Unlimited Stealth Camo:
Left, Down, Down, Down

Unlimited Enhanced Vision:
Left, Right, Up, Down

Unlimited Laser Eyes:
Left, Left, Up, Right