Xena: Warrior Princess - Talisman Of Fate 

Play as Despair 
At the main menu, press Right(2), Left(2), Right, Left, Right to unlock Despair and give Xena additional attacks. If you entered the code correctly, you will hear a sound. Alternatively, successfully complete the game on any difficulty setting.

Play as Bunny Despair 
At the main menu, press Right(2), Left(2), Right, Left, Right, C-Left, C-Up, C-Right, C-Down. If you entered the code correctly, you will hear a sound. Then, select Despair to have him appear in a bunny costume.

Titan mode 
At the main menu, press Right(2), Left(2), Right, Left, Right, C-Up, C-Down, C-Up, C-Down. If you entered the code correctly, you will hear a sound. This allows three people to be fought in quest mode.

Fight Gabrielle instead of Hope 
At the main menu, press Right(2), Left(2), Right, Left, Right, C-Left(4). If you entered the code correctly, you will hear a sound. -From: redfield111@prodigy.net

Take no damage 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SP(3), WK(3), A.

Take less damage 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SP(3), WK(3), Z.

One-hit kills 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SP(3), WK(3), R.

Invisible fighter 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SK(3), WK, Z.

Invisible fighter and opponent 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SK(3), WK, A.

Polygon fighters 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SP(2), A.

Small fighters 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, WP, SP, SK, WK, A.

Big head mode 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, Z.

Big feet mode 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, R.

Snow mode 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, SP(2), Z.

Slippery stages 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, WP(3), WK(3), A.

Red nose 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, WP(2), A.

Green nose 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, WP(2), R.

Purple nose 
While playing a game, hold A and press Right(2), Left(2), Right, Left, Right, WP(2), Z.

Combos 
If the following combos are executed correctly, the word "Wow!", "Awesome!", or "Excellent!" will be spoken. SP: Strong Punch, WP: Weak Punch, SK: Strong Kick, WK: Weak Kick.

Callisto 
Spinning Slash Combo: Away + SP, SP, SK, SP, SP, SP, SK, WK

Multi-Slash Combo: WP, WP, SP, SP, SP, SK, WK

Xena 
Big Swing Combo: Away + WP, WP, SP, WP, SK, SK, SK, SP

Gabrielle 
Speed Bag Combo: Away + WP, WP, WP, SP, SP, SP

Velasca 
Blast Combo: Away + WP, SP, WK, SK, SP, SP

Additionally, there are three button combos (i.e. Joxer's WP, WP, SK) for each character. Other characters have the longer combos (such as Lao Mao's attack that ends with a blast of green gas).