Square's Rebellion Overdrive is a new episode for GREE's Knights of the Crystals
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Siliconera has gotten to the bottom of a Square trademark it uncovered this morning called Rebellion Overdrive, and turns out its a new episode for the Japanese, GREE social game, Knights of the Crystals. The North American version on Facebook ends on February 29. So much for hoping it was one of Square's Unreal Engine 3 games.