Wakeboarding Unleashed - Platform: XBox

Level Select 
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Press X(4), B(4), Y(4), X, B, Y at the main menu, A message 
will confirm correct code entry 

All boarders
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Rotate the Right Analog-stick clockwise fifteen times. A message 
will confirm correct code entry.

Second and third boards
-----------------------
Press Up(2), Left(2), Right(2), Down(2), Up, Left, Right, Down, 
Up, Left, Right, Down at the main menu. A message will confirm 
correct code entry.

Completion bonuses
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Successfully complete all levels to unlock the credits stage, a 
video of your character, and Summer, the first hidden character

Master code
-----------
Quickly press Up, Down, Up, Down, Up, Down, Up, Down, Up, Down, 
Left, Right, Left, Right, Left, Right, Left, Right, Left, Right 
at the main menu. A message will confirm correct code entry. 
All the boards (including the jet board); 100% of challenges, 
gaps, and objectives; all stats at maximum; Jordan, and Summer; 
and Sensei Shaun Murray (has all special tricks) will be unlocked. 

Play as Jordan
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Make a perfect run during all the Star Search challenges (collect 
every possible star) to unlock Jordan, the second hidden character.

FMV sequences
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Successfully complete the game to unlock the FMV sequence for that 
character.