Gorilla Gone

Gorilla Gone (Wheresim Gonium) is Chunky Kong's special pad ability in Donkey Kong 64. Chunky learns this ability after purchasing the potion from Cranky Kong's lab in Creepy Castle for seven Banana Coins.

When Chunky stands on a pad with his face on it, simply pressing the button will turn Chunky invisible (though his hat and vest remain visible), allowing him to sneak past otherwise impassible obstacles and see things that would otherwise be invisible to him.