This supplement introduces one of the most popular genres of anime to players of d20 System role-playing games: the "mecha" world of giant transforming robots, powered battle armor, star-spanning space cruisers, speedy hot rods and motorbikes, military assault vehicles, giant mechanical monsters, and much more. The d20 Mecha book provides a detailed, point-based creation system for all mecha types, making it an essential supplement for Big Eyes, Small Mouth d20 or any other d20 System game. Additionally, d20 Mecha explores the common mecha story conventions, with game rules covering prestige classes, character options, combat maneuvers, hit locations, and campaign suggestions.