Take intergalactic adventure on the go with Ratchet & Clank: Size Matters for the PSP. The dynamic duo, Ratchet and Clank, embark on a new quest when they are sidetracked from their vacation by a mysterious little girl named Luna. Explore various planets, wield a familiar arsenal of outlandish upgradable weapons and gadgets, and don new sets of armor with unique abilities. This portable title successfully captures the charm, humor, and action-platforming gameplay of its console counterparts, delivering a full-fledged Ratchet & Clank experience in the palm of your hand.