The 10th anniversary edition of Halo: Combat Evolved will include an explosive Grunt Funeral bonus for those that pre-order.
The grunts are among Halo's most basic enemy types - short, stocky humanoids that breathe methane to survive.
Activating the Grunt Funeral feature turns each grunt's methane tank into an explosive hazard, with chain reactions just waiting to happen.
Also playing on Halo's nostalgia factor is a pre-order bonus allowing players to outfit their Xbox Live avatar in Master Chief's suit of armor.
Halo: Combat Evolved Anniversary launches for the Xbox 360 on November 15, using a budget price of $40 (£35/€40) to up its chances during the industry's busiest period.
It comes out soon after games like Forza Motorsport 4, Battlefield 3, Batman: Arkham City and Modern Warfare 3, and on the same day as Assasin's Creed: Revelations and Saints Row: The Third.