Chip McCallahan has exactly one goal: join the Bit Busters computer club and get close to its most admired member, Melinda the Mental Marvel. Between him and membership stand 144 puzzles—labyrinthine levels filled with logic gates, monster patrols, ice floors, force fields, hidden passages, and timing challenges that require careful planning before a single step is taken. Each puzzle is a self-contained test of a different kind of thinking, and failure sends Chip back to the start with nothing but his own stubbornness to rely on.