Unlockables
At the 'Options' screen go to the cheats section to enter the following codes to unlock the corresponding.
Unlock ALL Levels:
X, Left, Up, Circle, Down
Invulnerability:
Right, Circle, Up, Left, X
Unlock Double Damage:
Circle, Right, X, Up, X
Unlock Unlimited Grayskull Power:
Down, Right, X, Circle, Down
We have more cheats and tips for this game here, Masters of the Universe He-Man: Defender of Grayskull cheats
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