Run the game, then hit the left button on the back of your Action Replay (or similar) cartridge and press E before entering the following codes:
POKE 10276,173 (jump levels - Part I)
POKE 14888,173 (jump levels - Part II)
Once you're done, press F3 (or enter SYS53244 if yours is not an AR cart) to restart the game with the relevant cheats in effect.
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