Ratchet & Clank: Size Matters is the sequel to Ratchet: Deadlocked. After the previous game, Ratchet and Clank needed a vacation. Unfortunately they were interrupted by a school girl working on a project named Luna. She gets captured later on and Ratchet and Clank must rescue her, only to discover an ancient race mentioned in stories of how technology works.
"Ratchet & Clank: Size Matters" is shorter than it's predecessors, but still features the same gameplay. It was released for the PlayStation Portable and the PlayStation 2. The PlayStation Portable version was better rated then the Playstation 2 version. It did initially feature multi-player capability as well, but the servers were shut down around June 27, 2008.
Gameplay is much like it's predecessors.Weapons play a major role in the game, with the ability to upgrade and customize them. Devices that helped you progress in he game. Gadgets also play a key role in helping solve puzzles and fight enemies. During space battles, the player can control a giant version of Clank, instead of the usual ship.