Wooooahhhh! Atomic Super Boss

While my heart wants to play Borderlands, my poorly head makes me play Atomic Super Boss. It's actually a webgame port of the freeware Bullet Hell, but with a high score table. You with a boss, who moves through different attack patterns, randomly. You shoot him. The closer you are, the more points you get. Maximise score before he inevitably kills you. Videogame!