Amateur Series completed:
Enter 90HG6738 as a password.
Top Contender Series completed:
Enter H7649DH5 as a password.
Pro Am Series completed:
Enter 2GG48HD9 as a password.
Prof. Series completed:
Enter 8G3D97B7 as a password.
World Title completed:
Enter B3G58318 as a password.
Survival Mode completed:
Enter G51FF888 as a password.
Invincibility:
While choosing your boxer, press Right, Left, Left, Right, Left, then press Select.
More power:
While choosing your boxer, press Left, Left, Left, Left, Right, then press Select.
