Unity 2D Physics Rigidbody2D body types | Body Type | Behaviour | |---|---| | Dynamic | Moves under force/gravity/velocity. Most gameplay objects. | | Kinematic | Moves only via / . No automatic forces. Use for player controllers when you handle motion manually. | | Static | Doesn't move. Optimised. Use for terrain, tilemaps. | Collider2D shapes , , , (open polyline), (closed shape). Stick to primitives where possible — polygons with many vertices are expensive. merges multiple child colliders into a single optimized shape (standard for tilemap collision). Joints | Joint | Use | |---|---| | H…