It plays like "Ratchet & Clank: Tools of Destruction" only there is less understanding moderately weapons (no new) and in some areas more platforming and adventure elements. Exploring the landscape I entfand rather less than announced, if you have the other passages found you only get Bolts. The biggest problem I find, the collector's value is rather low, because there are no style points and no Goldbolts. Shops there is no, just a couple of times you will be asked to pay. But I find the conduct of dialogues very well done, because as in the predecessor, you can ask questions or answer. It is crying out after that play through again. For as soon as you reply then run the dialog otherwise continue. It is even possible to carry out anti-hero actions, but this has currently made only a friend of mine. :-) Hereby the replayability value increases higher, moreover, there is now the difficulty Easy Medium and Hard. These places only on the fight from, or how fast you lose health. With are no changes to the AI noticed.
Basically the gameplay reminds me more of the very first part, which was also more platforming, but that nothing bad to say. There is simply less shot and one uses the wrench back more, which also has two new features. You can now pick up and throw objects, and moving mechanisms which are sometimes set with a few puzzles.
Thus, I can say, for about 15, it is more than a need, and I can not recommend it to any fan or want to become one.