Dual Bosses

To start off, you'll first need 2 enemies with the Machine component. This will not work if both enemies do not have the Machine component.

Linking the enemies

First, go to enemy 1's Machine component, find the Symbiote variable, and assign enemy 2's Machine component to that. Repeat the same but for enemy 2.

Example for Enemy 2:

For the enemies to heal, you require an animation in the enemy animation controller, named "Knockdown". You do not require any special events*, make sure it's at least 2 seconds in length.

Activate them like you would normally, using Activate Arena and Activate Next Wave.