Updated version of the classic Puyo Puyo puzzle game featuring the all-new "fever" mode. Better known in the west under the titles Puyo Pop Kirby's Avalanche and Dr. Robotnik's Mean Bean Machine Puyo Pop Fever still follows the classic bubble-popping format (align four or more "puyos" to make them pop) but Sega also delivers completely overhauled visuals with a more hand-drawn look an expanded roster of characters and a new "Fever Mode" that cranks up the action to frantic degrees once players fill a "fever gauge" on their screen. Although a four-player mode didn't make the cut two players can go head to head and compete for points or survival.