This fall marks the release of the latest versions of the two biggest music games in history. In September, Rockband 2 comes out, and Guitar Hero World Tour hits shelves on October 26th. Now that both games will have a full band (guitar, bass, drums, and mic) to rock out with, they're even bigger and better than ever. Here are the top features you should know about.

Rock Band 2 will feature improved drum and guitar controllers, while supporting older controllers, as well. New features include a training mode, a battle of the bands mode, and online capabilities for world tour mode. Also unlike the original, Rock Band 2 features a single tour mode that makes no distinction of the number of players.

Training mode will help players learn how to play each instrument. Within this mode is the drum trainer, which will help improve players on the drums through a beat trainer with dozens of drum beats to practice, fill trainer, which will teach players how to perform better drum fills, and a freestyle mode, which will allow player to free play the drums over MP3 songs on their console.

Players can create and customize their own in-game character, complete with adjustable hair, body physique, clothing, tattoos, onstage movements, and instruments. There will be over 200 songs, available for Rock Band 2, including 84 master recordings available on the game disc and 20 more to follow as free downloadable content.