I've beaten that game through and through, if my computer was fast enough to emulate the N64 I would do it, but unfortunately it isn't. For whoever is trying to do this, just use the wampastompa code, you can skip right through sections of the levels. It is a pain to enter than code, you have to hold down all buttons and tilt the joystick exactly halfway to the left until you hear a dong, then halfway to the right until you hear a dong, then half way to the left until you hear a dong, and so on until the debug screen pops up.

I have no clue how this could be done through an emulator. Perhaps if any N64 emulator has a Gameshark feature that would be the easiest way.