Powerful World Soccer 3

All-star team
At the title screen, press Up, L, Up, L, Down, L, Down, L, Left, R, Right, R, Left, R, Right, R, B, A, Z + Start.

Big head mode
At the title screen, press C-Up(2), C-Down(2), C-Left, C-Right, C-Left, C-Right, B, A, Z + Start.