ok i found out why the guy is way up in the air. every place i went to where u could pre-order halo 2 had features of the game and in the second description it says low grav. so that's why (look at gamestop, amazon, or places like that to see): * Covenant forces attack Earth, another Halo ring comes into play, and the Master Chief takes the battle to the Covenant * New vehicles and weapons, destructible environments, low gravity, online play, Human vs. * Covenant multiplayer battles, improved AI, and more * Better control: sprint at twice normal speed, peek around corners, chain melee attacks into devastating combos * Completely rewritten graphics engine allows previously unimaginable complexity and detail * Multiplayer modes include Oddball, Race, Slayer, Capture the Flag, and exclusive modes only available for play over Xbox Live