Invincibility:
Enter MUTEKI as a name.

Kill opponent:
Enter BIGNET as a name, then press Start on controller two.

Pong mini-game:
Enter AZY as a name to play a two-player Pong mini-game called Black Ball Assault.

View FMV sequences:
Enter FOMA as a name. A Japanese menu that allows viewing of the FMV sequences will appear.