Celebrity trainer Jillian Michaels is joining the exer-gaming trend. The Biggest Loser star is developing her own fitness game for Nintendo Wii. Jillian Michaels' Fitness Ultimatum 2009 will incorporate Wii's Balance Board into a fitness program. Michaels will provide health advice and exercise routines. She has already released a book (Making the Cut) and a workout DVD called 30 Day Shred.

Michaels hopes that her latest venture will attract younger customers as well as adults, and that it will contribute to the fight against childhood obesity. Fitness Ultimatum follows in the footsteps of Wii Fit, another exercise game released earlier this year. Majesco Entertainment intends to release the game during the upcoming holiday season.