Here are some cheats and tips for the game FIFA Street.
Mini-players:
Pause game play, then hold L + Y and press Up,
Left, Down(2), Right, Down, Up, Left.
Normal size players:
Pause game play, then hold L + Y and press Right(2),
Up, Down(2), Left, Right, Left.
All apparel and footwear:
Hold L + Y and press Right(2), Left, Up(3), Down,
Left at the main menu.