International Superstar Soccer 2 – XBox

International Superstar Soccer 2 - Platform: XBox
     
Big Heads
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At the title screen, press 
Down, Right, Up, Left, A, B, Y, X, White, Black, Start + Back. 

Flat Players
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At the title screen, Click Left Analog-stick, Left Analog-stick, 
Right Analog-stick, Right Analog-stick, press L, R, Black, White, 
B, A, Back + Start.