At the PRESS START screen do this VERY CAREFULLY!

1. Press and HOLD C, press and HOLD B, press and HOLD A, press and HOLD Up, press and HOLD L(shift).
2. Then, release A, release C, release L(Shift), release Up.
3. A voice should say "Blackhole engaged"
4. During the game press and HOLD A+B+C+Up+L(shift) to advance Or HOLD X+Y+Z+Up+L(shift) to go back.