Level select:
Hold L + R and press Start at the title screen.

Play as Zarak in story mode:
Enter AYA YBB BYA AAY YB AAA as a password.

Play as Korr in story mode:
Enter BYB YAB AAB YBY YBB BAB as a password.

Play as Bane in story mode:
Enter AYA BAA AYA ABA YYY AYB as a password.

Zarak's full ending:
Enter ABY YAB AAA BYB BAB AAB as a password. Fight Korr to see Zarak's ending under the warlord difficulty setting.

Korr's full ending:
Enter BBY ABB YYY YYY AAB BYB as a password. Fight Zarak to see Korr's ending under the warlord difficulty setting.

Play as Divada mid-game:
Enter BBB AYY AYB BAA AAB BAA as a password.

Play as Divada at Zarak:
Enter BAB YYA BAB BAB BYY YYA as a password.

Play as Talazia mid-game:
Enter YYB BAY BYB YYB ABY YAB as a password.

Play as Talazia at Zarak:
Enter AYA YBB AYA ABB YBA BBA as a password.

Play as Jentai at mid-game:
Enter YAY AYB YYA BAY ABY AAA as a password.

Play as Jentai at Zarak:
Enter AYA YYA YYA YAA YAB YYA as a password.

Play as Zorn at mid-game:
Enter YAB BYY ABB AAB BYB BAB as a password.

Play as Zorn at Zarak:
Enter AYA AAY BAA BAY AAB ABB as a password.

Random character select:
Hold Select and press A at the character selection screen.