Battle Bears 1: Zombies - The Bearbershop Quartet Boss Fight [Hard Mode, Hitless]

The first of five bosses in Battle Bears 1: Zombies that I defeat on the hardest difficulty while taking no damage. They stop their singing animation upon being shot, but you'll notice one of their sound waves do touch me. Animations have to reach a certain point in this game to be able to damage you, ie when a Huggable gets to your sandbags, you don't immediately take damage, so I shot the one singing fast enough.