The following are known Action Replay Codes for Sesame Street: Elmo’s Letter Adventure on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Have All Letters
800719c8000c

Infinite Strikes
800719cc0000

Have All Numbers
8007409c000c

Infinite Strikes
800740a00000