Ice Age 2: The Meltdown (PlayStation 2)
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Infinite energy
Pause the game and press Down, Left, Right, Down(2), Right, Left, Down.
Infinite health
Pause the game and press Up, Right, Down, Up, Left, Down, Right, Left.
Unlock unlimited pebbles
Pause game , after press Down, Down, Left, Up, Up, Right, Up, Down.