Experience a pocket-sized galactic adventure with Ratchet & Clank: Size Matters [Greatest Hits] for the PSP. Join Ratchet and Clank as they are pulled from their vacation into a new mystery involving a kidnapped girl named Luna. Explore diverse planets, utilize an arsenal of crazy and upgradable weapons, and equip different armor sets with unique abilities. This popular handheld title successfully translates the series' signature action-platforming, humor, and inventive gadgetry into a compelling portable experience, now recognized as a Greatest Hits title for its widespread appeal.