Ice Age 2: The Meltdown Unlimited health: Pause game play, then press Up, Right, Down, Up, Left, Down, Right, Left. Unlimited energy: Pause game play, then press Down, Left, Right, Down, Down, Right, Left, Down. Unlimited Pebbles: Pause the game and press Down, Down, Left, Up, Up, Right, Up, Down. Level select: Hold R1 and press Square, Circle, Circle, Triangle, X, Triangle.