We explore the possibility of implementing real-time fluid simulation on iPhone to create an innovative game experience. Using fluid dynamics and water tri-states as game mechanics, players can manipulate fluid and solve puzzles through the unique input controls of iPhone, such as accelerometer and multi-touch. We implement particle-based fluid simulation and integrate our particle system with a physics engine, Box2D, to realize the interactions between particles and rigid body. The playtest showed that Fluxion is not only a fun game, but also educational since it provides players the basic concepts of how fluid behaves in the real world.