Activision has pulled out all the stops with its version of a full band game in the form of Guitar Hero World Tour. Just like its direct competitor, Rock Band, the game features gameplay for up to four players simultaneously: two on guitars, one on drums, and one singing. It's also got a long list of master recordings from a wide array of bands (see our preview for the confirmed set list). Where World Tour is going to set itself apart from any music game before it will be the ability to create and share playable songs via a full-blown music creation studio and a dedicated online music sharing service. To top if off, the Wii version will not only be as fully-featured as the other versions of the game, it will have an exclusive mode as well.