New Outfits

In exhibition mode while picking a team press L + R

Mascot Costumes

To get mascot costumes you have to beat season mode without losing. (You have to beat the game with whatever teams you want because it only gives you the mascot of the team you beat the game with.)

Easy wins

When u want to play a game go on options and for player 2 (the comp) if your playing one put that white bar all gone. this will make them more tired and u will get better pitches to hit I once did a no-hitter with that on