Not all you'd think it would be...

User Rating: 8 | Ratchet & Clank: Size Matters PSP
Ratchet and Clank : Size Matters for the PSP is another addition to the Ratchet and Clank series...as above says, for the PSP. Size Matters still maintains the series' humor and the graphics and story are top-notch. If you've played the other R&C games, and begin playing this, it's going to feel a bit odd compared to others but the game really is great. Gameplay hours are short though. Took me approximately 5 hours 33 mins to beat this game then as usual they ask if you'd like to do the game over but have the bolt multiplier and stronger weps. If you were to do it over, then gameplay hours would be roughly 7-8hours. The graphics were great! When i first got Size Matters, i thought, "Oh yeah...don't expect the graphics to be so great...", but i was actually shocked. They introduced another weird boss and the armor customizations are great. The plot behind Size Matters is good but not so much great...If you've played the other R&C games, you'll like this. The Multiplayer is great except that sometimes not alot of people are on but it's still fun to go online with others and have a blast!
All in all, it's a great game to get and helps waste your free time and it still maintains all the benefits of the other R&C games, but, on the go!