In the game Terrarium (a kind of 2D Minecraft), I am having trouble beating the boss, Pantera. Help?

I beat the Wall of Flesh and I'm in hard mode but I keep getting killed by Pantera. Dimebag's riffs are too powerful.

Read more: In the game Terrarium (a kind of 2D Minecraft), I am having trouble beating the boss, Pantera. Help?