Outlaw Volleyball: Spike or Die Cheat Codes for XBox

Big Head
While the game is playing (yup, while you or the opponent are serving) hold down the Left Trigger and press B, A, B, Y.
Submitted by: Gaius

Exploding bomb
During exhibition mode, hold left trigger then hit A, B, B, Y, A+X.
Submitted by: Alex

Get all characters
Go to character select in exhibition mode. Now hold the left trigger and hit left, white, right, white.
Submitted by: Gaius

Get all courts
At the character selection menu, hold the left trigger then hit up, down, up, left, left, right.

Big chests
Hold L and quickly press B, Up x2, B, Y during game play.

Bombs on court
Select exhibition or random play mode with the time bomb option enabled. Then, hold L and quickly press A, B x2, Y, A + X during game play. Bombs will appear on the court.
Submitted by: Gaius

Hidden Nikki Steele FMV sequence
Select the "Options" selection at the main menu. Highlight the "Credits" option, then hold L + R and press A.

Taunt opponent
To taunt your opponent, before a match click the "Right Analog-stick".

Hidden court
You can unlock a hidden court by completing all tour event matches.

Warehouse court
Successfully complete all 20 drills with one player.

Get beating tokens
During exhibition mode, hold the left trigger then hit white, white, white.

Max statistics
In exhibition mode, hold the right trigger then hit left, white, right, white.

Taunts
Click the right analog stick before a match starts to taunt opponents.

Big Boobies
While the game is playing (yup, while you or the opponent are serving) hold down the Left Trigger and press B, Up, Up, B, Y.