Ars Technica has a great look at the latest installment in the Ratchet and Clank series, "A Crack in Time." Along with the great looking graphics and same great gameplay, A Crack in Time offers a brand new game mechanic: "time pads." Time pads allow you to make a copy of yourself and move through a series of action, then shift back to "real time" and interact with your past self. "It's a game mechanic that's hard to describe in words, and wrapping your head around it inside the game isn't much easier when it's first described with an example or two. You have to play with it and bend time to your will before you see just how ingenious the whole thing is. The puzzles begin simply and grow harder as the game moves on. The use of time is done very well and elevates what we've played of the game from another platforming experience to something truly special."