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

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

Glitch: Saved game deletion:
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.