Backyard Baseball 2007 Cheats - GBA
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Unlock Area 51
Make it to the World Series.
Unlock Hidden Characters
Play a season, don't need to complete it in order to unlock a character:
Bobby Abreau - Earn 15 Seaon homeruns with one person.
Derek Jeter - Turn 2 Double Plays in One Game.
Derrick Lee - Get 30 Season hits.
Dontrelle Willis - Earn 45 strikeouts during the season.
Johan Santana - Pitch a shut-out against any team.
Monsterous Stadium - Make the playoffs.
Paul Konerko - Hit a Grand Slam in a game.