WASD/Arrow Keys to move, click to shoot. Dodge the bosses attacks. Sometimes you need to reload the page because your HP doesn't reset.
BOSS #1 Thanks to: Terraria for sound and music and @stonewall123456 for some inspiration. I know it's easy, its the first boss, so don't complain :) FUN FACT: The sprite for this boss was made in under 30 seconds! And yet I think the sprite looks better than most of my other stuff, kinda funny!