Ratchet and Clank tools of destruction is what it is supposed to be. It is one of the only games that begins when it ends. I beat it last night and got to restart it with the weapons that I finished with. This is where challenge mode comes in. This is the best part of the game, going back to get everything you missed the first time. Just like all the Ratchet games you go back and everything is upgraded. The challenge the weapons the bolts, it is all multiplied to a higher level. So I started it again last night and just wanted to keep going. It is so fun and more challenging. There are the skill points that I did not get the first time and gold bolts, it is just insane how much fun this is going to be. It is a great game. Too easy the first time around but that is why there is the challenge mode. It is a lot different from just adding a higher level of difficulty.