Backyard Baseball (GBA)

Backyard Baseball cheats:

Aluminum bat
Enter POWER to get an aluminum power bat when batting.

Boost stats
Put players on their real Major League team and they will have boosted stats.

Determine type of player's day
When your player's picture appears, you can tell what kind of day he or she will have. If their background is orange, they will have a great day, green for an okay day, and blue for a bad day.

Disappearing items
Once you hit the ball with Achmed, his headphones will go away. When you hit the ball with Pablo, his hat goes away.

Easy grand slams
After the bases are loaded, keep them this way until Ichiro Suzuki is at bat. Choose the Power Hit, and on the next good pitch, swing. He will almost always get a home run. The more people on base, the better Ichiro hits.

Easy Homerun Derby
Play a Homerun Derby and choose Pablo.

Powered up players
When playing as a team that is a real MLB club, choose a real player that is also actually on that team in real life. His stats will be boosted.

Kimmy Eckman has 6 extra in skill when playing at Eckman Arches.

Amir Khan gets 5 extra in skill when on Achmed's team.

Annie Fraizer gets 3 extra in skill when on a team with an animal for a logo.

Ernie Steele gets 5 extra in skill when playing at Steele Stadium.

Sidney and Ashley Webber each get 8 extra in skill when on the same team.

Recommended team
Choose this team for a season to win every game easily, including the World Series:

Derek Jeter: SS
Jimmy Rollins: 3B
Pablo Sanchez: 2B
Jason Giambi: 1B
Mike Piazza: C
Randy Johnson: P
Barry Bonds: OF
Ichiro: OF
Sammy Sosa: OF

Other Sites you may consider
CheatServer.Com
Cheat Codes Club