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.