This page contains Soccer Mania Codes for GameBoy called "Invisible Opponent" and has been posted or updated on Jan 16, 2007 by Buffmonkey.
- Developer: Kitty Group
- Publisher: Sony Imagesoft
- Genre: Sports
- Release: Not Set
- ESRB: Not Set
While on the title screen press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start.
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