The co-developer of the "Fuzion" system published what game on their own?
Danger International Danger International is a role-playing game published by Hero Games in 1985.
Dangun Feveron Dangun Feveron (弾銃フィーバロン , Dangan Fībaron , lit. "Bullet Gun Feveron") , also known by its overseas title Fever SOS, is a vertical scrolling shooter game developed by Cave and published by Nihon System Inc. in 1998. The gameplay is typical of manic shooters, with numerous swarms of enemies onscreen at any given time, and bosses that shoot intimidatingly large clusters of bullets. Unique to this title, the score of the game is disco music, which is a particularly unusual choice for a shoot 'em up. In April 2016, Cave announced that M2 is porting "Dangun Feveron" for the first time to a home console, the PlayStation 4, as part of their "M2 Shot Triggers" publishing label.