DREAM.12 took place on October 25, 2009, at Osaka-jo Hall in Osaka, Japan, promoted by Fighting and Entertainment Group’s DREAM. The main event features Eddie Alvarez facing Katsunori Kikuno in a lightweight bout, with Alvarez coming off a submission win over Tatsuya Kawajiri at DREAM.5 and Kikuno entering undefeated after a TKO victory in DEEP. Other key matchups include Alistair Overeem vs. James Thompson in a heavyweight clash, Marius Žaromskis vs. Myeon Ho Bae in the welterweight division, and Chase Beebe vs. Yoshiro Maeda in a featherweight bout. The event introduces a unique white cage instead of a ring, a first for DREAM.