Level Skip
To skip levels while you are playing, enter the ninety-nine lives and level select code. Then hit A, B and C during gameplay to skip a level.

Ninety-nine lives and Level Select
To obtain ninety-nine lives and execute level select, press the following sequence at the title screen, A, B, C, A, B, C, B, C, B, A, then start. This will take you to configuration mode, where you can use the cursor to select any level you want. If you move it to mode, push right until ''MY99'' appears for 99 lives.