The following are known GameShark Codes for Disney’s Pooh’s Party Game: In Search of the Treasure on Sony Playstation (PS1).
These codes were also known as Action Replay Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

• Max Hunny’s
  800CCD90 03E7
• Press L1 For Complete One Lap To Win Rabbits Roller Races
  D00C9202 FBFF
  800CCD94 0001
• Press L2 For Auto Win Owl’s Fruit N Hoot
  D00C9202 FEFF
  800CCD94 0037
• Press R1 To Refill Health Health (Tigger’s Thunder And Frightening)
  D00C9202 F7FF
  800CCD94 0002
• Score One Point To Win Pooh’s Pinball Party
  D00C9202 FDFF
  800CCD94 00C7