E3 2009 takes place on June 1 through June 4 at the LA Convention Center. The event marks the return of E3 to a large-format trade show that the expo had been before 2007, after which it scaled down and became an invite-only event.

Microsoft's presentation at E3 2009 occurred on June 1, 2009. Microsoft featured:

1. Beatles Rockband
2. Project Natal—a new controller-less motion and voice recognition system for the Xbox 360
3. Social integration of Facebook, Twitter, and last.fm on the Xbox 360
4. Metal Gear Solid Rising
5. Halo ODST
6. Halo Reach
7. Improved Netflix integration on the Xbox 360