Hero Mode
50 Lives:
At the game selection screen, go over to the "Erase" option, hold Select and press B, A, R, R, A, L, L.
Now when you start a game, you'll have 50 lives!
Hero Mode:
Beat the game with 100%. Start a new game and select Two-Player mode to activate the "Hero mode" option!
More tricks, tips and cheats for this game are right here - Classic NES Series: Donkey Kong cheats
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