This Battle Mode is Red's Theme (from The Angry Birds 3: Elite's Revenge) composed by Brian Tyler Vs. Bulletproof by La Roux


Left Side - Red from The Angry Birds

Right Side - The dancer from Bulletproof


If Red's Theme wins, Red gets out Elite's gun and pushes the Bulletproof dancer with the bullet

If Bulletproof wins, the dancer gets out a slingshot from Angry Birds and shoots Red with it