Japan-based developer, CyberStep, recently announced CosmicBreak 2, sequel to the popular online anime shooter which first launched in Japan in 2008. Having gathered experience and feedback for several years, CosmicBreak 2 will have vastly better graphics, more customizing of characters, robots, modes and stages. Of course, along with new kawaii anime babes (3 revealed for now).
One of the new features revealed will be the “stages which change dynamically”. I have no details on that now, but I am guessing the improved landscape mechanics will allow players to destroy objects, blow up mountains (and maybe discover a hidden cave?) and therefore change the stage. I will post more info when available, but for now, CosmicBreak is still available in English.