Select Goodies from the main menu, hold L1, L2, R1, or R2 and press Select. Now four numbers will appear in the lower right corner of the screen. The shift buttons must be held in combinations to enter a hexadecimal number in the debug value. Pressing Select accepts that number. R1 = 1, R2 = 2, L1 = 4, L2 = 8. Thus, to enter a debug value of 6, press R2 + L1.

Extra Characters 4E43
Extra Tracks 4154
Tank Combat 5443
Submarine X 5358
Motor Toon R 4631

Accessing Extra Characters - Code: 4E43
Hold L1 and press Select
Hold L2 + L1 + R2 and press Select
Hold L1 and press Select
Hold R1 + R2 and press Select

Accessing Additional Tracks - Code: 4154
Hold L1 and press Select
Hold R1 and press Select
Hold L1 + R1 and press Select
Hold L1 and press Select

Accessing Tank Combat - Code: 5443
Hold L1 + R1 and press Select
Hold L1 and press Select
Hold L1 and press Select
Hold R1 + R2 and press Select

Accessing Submarine X- Code: 5358
Hold L1 + R1 and press Select
Hold R1 + R2 and press Select
Hold L1 + R1 and press Select
Hold L2 and press Select

Accessing "Motor Toon R - Code: 4631
Hold L1 and press Select
Hold L1 + R2 and press Select
Hold R1 + R2 and press Select
Hold R1 and press Select

These new options may be saved on a memory card to avoid repeat entry.