Piposaru Ratchet
The Piposaru Skin is an unlockable item included exclusively for the Japanese release of Ratchet & Clank: Up Your Arsenal, it is a cameo of the iconic Pipo Monkeys from the Ape Escape series of games, which is also another popular Sony video game franchise. The skin is unlocked by entering a code in the pause menu (Up, Down, Up, Down, Left, Left, Right, Right, Square, Square, Square.).