Summary: As a huge Ratchet and Clank fan, I got this game the day I got my PSP. And I was fairly pleased with it. The gameplay is solid. You switch between Clank missions, Ratchet Missions and Quark Missions. Clank Missions play out similar to how all R&C games play. Plus, some stealth areas. Which is the big downside to the game. Being stealthy just isn't fun. The Ratchet Missions are simply put arena challenges.
Summary: It arrived promptly and well packaged. It was a gift for my son and he is very happy with it and gets great enjoyment from it. It seems to have a lot of different play modes, options and levels as well as special features (so he tells me). It was a good price and well worth it.