Two dimensional players:
Enter PRPPAPLYR as a cheat code -or- press Up, Right, A, Right, A, Down, Down, Up, Up, Down while playing.
Fat and thin players:
Enter ABBTNCSTLO as a cheat code -or- press A, Left. Left, Right, Up, B, Right while playing.
Big heads, feet, and bat:
Enter GOTHELIUM as a cheat code -or- press Left, A, Right, Down, B, A, Left, Left while playing.
Baseball trails:
Enter GRTBLSFDST as a cheat code -or- press B, Left, Up, Right, Down, B, A, Left, Left while playing.
Giant baseball:
Enter BBNSTRDS as a cheat code -or- press Up, Right, A, Left, Left, B, Up, Left, Left while playing.
Alien mode:
Enter ATEMYBUIK as a cheat code.
Hidden Messages:
At the main screen, press C-Up, Right, B, B.
Credits:
At the main screen, press Right, A, Z, Right, C-Right, A, B.
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All-Star Baseball ´99 Cheats, Codes & Walkthrough/Guide/FAQ for Nintendo 64 from Cheat Code Central
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