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. Hero Games: Hero Games ("DOJ, Inc dba Hero Games") is the publisher of the Hero System, a generic roleplaying rules set that can be used to simulate many different genres, and was the co-developer of the "Fuzion" system.
Danger International