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Playstation 2 - All-Star Baseball 2004 cheats

Homerun celebration:
After score a homerun, press R1 when palyer are running the bases.
Pressing R1 again and your player will jump on home plate. 

Get lots of points
Start a 2-player game and proceed to strike out every batter on each side until 
the bottom of the 9th inning. When you've got 2 outs at the bottom of the 
9th, walk the next 4 hitters to earn enough points to buy 100 card packs, 
which should get you almost every card. If not, repeat and get yourself more 
card packs. Note: This doesn't include special cards earned in Scenario Mode.
Submitted by: 2Arcdam