Master of Magic
Master of Magic-large
Description Kill the Harpy King on World 6, losing no lives
Game Wizard Run
Members? Yes Seasonal? No
Hidden? No Secret? Yes
Orb Points Orbpoints 1000 Orb Coins 10 Orb Coins 10

This achievement is actually very easy, all you do is hurt the boss until he transforms into a dragon and than you can go to a safespot in the bottom right corner. You jump onto the ledge, shoot a ring of stars, and jump back down to the floor and repeat. This is a common tactic used to defeat the Harpy King, but not the only one.