Mx Grau is a complete motorcycle stunt and wheelie game source code designed for Unity. The project provides a strong foundation for creating bike simulator games, freestyle stunt games, urban riding games, bicycle games, or open-world motorcycle experiences. The gameplay focuses on realistic wheelies, balance control, leaning, stoppies, crashes, and freestyle riding physics. Players can ride different vehicles, perform stunts, control the rider with procedural animation, and enjoy smooth cross-platform controls on mobile, PC, and WebGL. The project includes optimized motorcycles, bicycles, rider IK systems, active ragdoll crash physics, one-click character replacement, Mixamo-compatible setup tools, configurable vehicle physics, and Unity Ads structure. It is built for developers who want a ready-to-customize motorbike template with advanced rider and wheelie mechanics. Features: Complete motorcycle stunt game source code Advanced wheelie physics system Balance control and lean mechanics Stoppie and freestyle riding support Rigidbody-based vehicle physics Street motorcycles, supermotos, touring bikes, adventure bikes, and bicycles included Mobile-optimized vehicle models Fully customizable vehicle colors, parts, and setups Procedural rider animation system Advanced IK rider controller Rider movement adapts to bike motion and terrain Active ragdoll crash physics Realistic rider reactions during crashes and falls Only 3 required rider animations One-click character replacement system Mixamo character compatibility Automatic joint configuration and IK target mapping Highly configurable engine power, gears, suspension, grip, wheel friction, and handling Keyboard controls included Mobile touch controls included Virtual joystick UI included Unity New Input System support Optimized for Android, iOS, PC, and WebGL Unity Ads structure included Clean and optimized C# source code Easy to customize, expand, and reskin Great foundation for further development Platform: Unity 6 LTS or Higher