Microsoft's Halo 4: $220M in first 24 hours
Company says video game surpasses records set by previous installments of its shoot-em-up series.
Also, Microsoft said that Halo 4 was on target to exceed the $300 million sales mark for its first week.
The title is the first of a new trilogy in the series, and the first to add onto the storyline developed in Halo, Halo 2, and Halo 3 by the franchise's creator, Bungie Studios. Halo 4 launched exclusively on the Xbox 360 on November 6.