Thanks for playing! I'm glad the map worked out, since it took awhile to get it to work.
You're right about the overheat, what you visually see is a bit delayed from what's happening under the hood. I'll keep it in mind for a future sequel.
The COEUS boss's projectiles should be shot instead of dodged. Including an earlier section with the missiles to communicate how the player has to shoot them would be a good idea. Also the colliders for the larger projectiles could probably be smaller.