Bonus music
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Stop playing without pausing the game to eventually have
Conker play music from Donkey Kong Land and Donkey Kong Country.

Restore energy
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Save the game when low on health, then restart to resume with
more energy.

Glitch: Saved game deletion
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If the game is played on a classic Game Boy after a game has
been saved after play on the Game Boy Color, that saved game
file will be automatically deleted.