Achieved by setting 0x0006d800's value to be 107,374,182, anything above this amount will cause 0x00076398 to overflow, thus making the score negative.

Vibri also can't say this number, so the game is stuck until the cross button is pressed.

There are a few ways to achieve this. The way I did it was to have her complete the level as her rabbit from and then put that number in.