When you create an Animator Controller, you can see three more nodes apart from your animation states:

• Entry and Exit: This node is used when you transition between state machines (Animator Controllers or substate machines). We will discuss it in detail in the Using Sub-State Machines in Animator Controller recipe in Chapter 6, Handling Combat.
• Any state: This node can be used as a helper to make a transition from any state to a given state. It is used when you have an animation that can be played anytime, for instance, a hit animation. We will discuss it in detail in the Using transitions from any state to play hit reactions recipe in Chapter 6, Handling Combat.