Dynamite!! 2008 was the annual kickboxing and mixed martial arts event held by K-1 & DREAM on New Year's Eve, Wednesday, December 31, 2008, at the Saitama Super Arena in Saitama, Japan. It featured eleven DREAM mixed martial arts rules fights in a variety of weight classes, four K-1 rules fights, and the inaugural K-1 KOSHIEN Under 18 high school tournament.

Saitama Super Arena is a multi-purpose indoor arena located in Chūō-ku, Saitama, Saitama Prefecture, Japan. It opened preliminarily on May 5, 2000, and then was officially opened on September 1 of the same year. Its maximum capacity is 36,500, making it the third-largest indoor arena in the world. The main arena capacity is between 19,000 and 22,500.