[全局设置（Project setting）](%E5%85%A8%E5%B1%80%E8%AE%BE%E7%BD%AE.md) [2D刚体（Rigidbody 2D）](2D%E5%88%9A%E4%BD%93.md) [碰撞（事件）消息](%E7%A2%B0%E6%92%9E%E6%B6%88%E6%81%AF.md) [2D碰撞体（Collider 2D）](2D%E7%A2%B0%E6%92%9E%E4%BD%93.md) [2D物理材质(摩擦和弹性)(Physics Material 2D)](2D%E7%89%A9%E7%90%86%E6%9D%90%E8%B4%A8.md) [2D关节](2D%E5%85%B3%E8%8A%82.md) [2D恒定力(Constant Force 2D)](2D%E6%81%92%E5%AE%9A%E5%8A%9BConstantForce2D.md) [2D 效应](2D%E6%95%88%E5%BA%94.md) [精灵动画](%E7%B2%BE%E7%81%B5%E5%8A%A8%E7%94%BB.md) [2D动画事件](2D%E5%8A%A8%E7%94%BB%E4%BA%8B%E4%BB%B6.md)