1)   Zirconia 2: Battle 1.1 Zirconia 2: Battle is a unique 2D "space" shooter not set entirely in space. In this game, you and a computer-controlled opponent are playing vertical scrolling shooters, split-screen style. 2)   The Best Arcade Game Ever 1.0 Blow away fighters coming at you from all directions as you explore HUGE worlds, and collect alien artifacts in this omni-directional 2D shooter hosting some briliant 3D graphics.