Whether its due to the classic “I want to get in shape this year new year’s” resolution or not, Jillian Michaels’ Fitness Ultimatum 2009 has sold over 500,000 units. It even pulled into the number 14 spot in January’s NPD sales figures. Not too flabby there Miss Michaels.

Fitness Ultimatum isn’t just selling well, 3G Sudios has confirmed that a sequel is already in the works. CEO James Kosta says that, though production hasn’t started, an official announcement from 3G and Jillian Michaels is coming in the near future.

We know that the now former Biggest Loser star knows her stuff when it comes to fitness, but she may not be on the up and up when it comes to videogames. We humbly suggest taking a cue from another fit woman — Nintendo star Samus Aran. Set a time goal on a work out, say running a mile, and if players beat it quick enough reward them with bikini shots. That or just let us cheat with the JUSTIN BAILEY code and see the goods quicker.