Limitations:The collision body representing the character's body can only use Box Collider 2D. You can make it non-collidable (check isTrigger), but you must add a Box Collider 2D as the body's collision detection area.The example utilizes the 2D Animation skeleton system, so please make sure the 2D Animation package is installed in your project; otherwise, the example won't work correctly. If you don't need to use the example, you can skip installing the 2D Animation package.Online Resources:- Quick start video- Unity 2D Animation packageThe Easy Hit System 2D is developed based on Unity's physics system. It provides a fast and convenient editor for you to implement attack collisions and hit effects.Features:- Easy to use- It provides a fast and convenient editor- All source code included