The last game of the HALO trilogy, presented by Bungie studios. It is the penultimate experience in FPS on the next-Gen console. Common side effects are:
1) walking around school/work/home and exclaiming Killing Spree, Killionaire, Killamanjaro, Overkill, and Killtacular at the slightest sense of achievement..getting an A on a test/completing a merger/making a sandwich.
2) It is also often played on LIVE by illiterate 4 year olds who constantly rape the shit out of older, more illiterate 16 or 23 year olds in the game lobby, over an argument over who's gayer. these 4 year olds should be avoided, as when they win they will constantly call you a no0b..even though you headshotted them with a pistol from the other side of Valhalla.
OMG I can't wait for Halo 3...IT'S PURE AW3SOMENESS!!!! I AM MASTERCHIEF!!!
*finish spreading mustard on sandwhich* OVERKILL!!