This document discusses various literary and narrative theories that could be applied to a science fiction video game story. It describes Roland Barthes' five codes for creating mystery and tension in narratives. It also outlines Claude Levi-Strauss' structuralism theory and Tzvetan Todorov's five-step narrative pattern of equilibrium, disruption, realization, restored order, and new equilibrium. The document proposes applying these theories to the story of a "Time Assassin" character who is sent on assignments that create disequilibrium according to Todorov's model, before order is restored and the cycle repeats if a sequel is made. Barthes' codes could also be employed to add plot twists, mysteries, and tension to