UEFA Dream Soccer Cheat Codes for Dreamcast

Unlock stadiums 1, 2, 5, and 11
At the arcade mode menu, press
B, Up, Y, Left, A, Right, Down.

Unlock stadiums 3, 7, 10, and 15
At the arcade mode menu, press
B, A, Left, Left, Start, B, A, Left, Left, Start.

Unlock stadiums 8, 13, and 16
At the arcade mode menu, press
B, A, Right, Start, B, A, Right, Start.

Silicon Dream teams
At the arcade mode menu, press
Y, A, B, B, A, Down, A, B, B, A, Down, Up.

Small players
At the arcade mode menu, press
Down, Up, Left, Left, A, Right, Down, Start.

All-Star teams
At the arcade mode menu, press
Start, A, Y, Up, Right, B, A, Down.