The two final contenders in the Doritos-sponsored "Unlock Xbox" game design contest have been fully realized and released as Xbox Live Arcade games today, for free. Until December 26, you can cast your vote for either Doritos Cash Course (download) or Harms Way (download) through the Xbox Unlock ad on the Dashboard, with the winner to be announced on December 29 and offered a 50G (that's dollars, not Achievement points) part-time, game consulting gig with Doritos.

Perhaps overshadowed by the flavorful showdown, the previously announced Bomberman Live sequel, Battlefest (download), is also available on the Arcade today for 800 Microsoft Points ($10). Additionally, the third Lara Croft: GoL challenge pack add-on, "A Hazardous Reunion" (download), has been released for 400 points ($5), along with the "Marvel Pinball" table (download) for Pinball FX 2, priced at 800 points.