Arron Sedillo Challenge Room:
     Press  Right,  Down,  Left,  Up, LB, RB, Y, Y, A, A, Start at the
"Press  Start"  screen  to  unlock  the fan made challenge room at the
"Challenge Room" menu.

EuroGamer Challenge Room:
     Press  Down,  Up,  Down,  Up, Left, LB, X, LB, X, Y, Start at the
"Press  Start"  screen  to  unlock the EuroGamer challenge room at the
"Challenge Room" menu.

GamesRadar Challenge Room:
     Press  RB,  Y,  X,  X,  Up,  Down, LB, LB, Up, Down, Start at the
"Press  Start"  screen  to unlock the GamesRadar challenge room at the
"Challenge Room" menu.

IGN Challenge Room:
     Press Up, Down, Y, X, X, Y, Down, Up, LB, LB, Start at the "Press
Start" screen to unlock the IGN challenge room at the "Challenge Room"
menu.