• Classic Ratchet & Clank gameplay, as playable Clank returns with all-new gameplay
• Take on the roles of both Ratchet and Clank in a journey across the galaxy full of new destinations to explore and conquer
• New and returning weapons and gadgets, including the Shocker, Agents of Doom and Shrink Ray
• Use the all-new customizable armor system to advance through challenging, action-packed areas
• Gain access to different vehicles to compete in races and combat enemies in intense battlefield missions

While on a much needed vacation, Ratchet and Clank's rest and relaxation time is cut short as they're lured into a mysterious quest. Following the trail of a kidnapped girl, Ratchet and Clank rediscover a forgotten race of genius inventors known as the Technomites. They soon uncover a plot more dangerous than they could have imagined. Ratchet and Clank make their PSP debut, in Size Matters! With wireless multiplayer gaming, up to four players can connect for intense combat and head-to-head action

I can't put it back. A simple and easy game that is a lot of fun to play!

No game is perfect every game has it's flaws even this one but for a PSP game the graphics are great and the game will have your time to just smile and the funny parts. Any kid or teenager is likely to fall in love with this game.

This is my first PSP game...and enjoying every bit of it. The graphics are amazing and strategies are pretty cool. I still have a lot to cover, just on the 3rd planet and getting thru with the cool skyboard races..!!

I love the rachet stuff, and the graphics is very impressive for a handheld. However the game is tiring the hands quickly. The psp is just not very good at this.

I would like to give this 3 and a half stars but can't.
OK, let's start with the good...
Fun to play, good graphics, and gives you a chuckle now and then.
Now the Bad...
Hard to strafe while shooting, slow to build up health meters/gun power, button combinations are tricky.

This is typical R&C. it's fun on a scaled down form for the PSP. The levels are good and pretty challenging but there are a few rough spots. In a later level you have to make a jump over a moving obstacle then wall grab and jump to the next platform. This would be a challenge on the PS2 but on a small scale PSP it's down right hard! Also, from time to time you might get hit by and enemy that is off screen but luckily this situation is one of only a few problems and it is a great game to have in your PSP collection. If you like R&C then you won't be disappointed.