  Mathematical reasoning with algebraic and graphical representations is
essential for success in physics courses. Many problems require students to
fluently move between algebraic and graphical representations. We developed a
freely available serious game to challenge the representational fluency of
introductory students regarding vector fields. Within the game, interactive
puzzles are solved using different types of vector fields that must be
configured with the correct mathematical parameters. A reward system
implemented in the game prevents from using trial-and-error approaches and
instead encourages the player to establish a mental connection between the
graphical representation of the vector field and the (algebraic) equation
before taking any action. For correct solutions, the player receives points and
can unlock further levels. We report about the aim of the game from an
educational perspective, describe potential learning scenarios and reflect
about a first attempt to use the game in the classroom.
