The big innovation added to the Ratchet and Clank series with All 4 One is right there in the title: The number 4. The game allows for four-player co-op. In Jake Gaskill's Gamescom preview, he spent some time with three pals playing the game, and here's the report:
"Insomniac has scaled the game in such a way to make it enjoyable and fun for a lone player, but there are tons of incentives and bonuses (not to mention good old-fashioned horseplay) that can only be experienced with other players. One portion of the demo we saw required all four players to hold hands to form a human kite to ride the upward thrust of a wind tunnel to safety. You could do it with two players, but having to coordinate with three other players clearly made it all the more challenging and exciting."
Enjoy the rest of our Ratchet and Clank: All 4 One preview.