Strong Bad's Cool Game for Attractive People Episode 5: 8-Bit Is Enough

Trogdor must be stopped! The beefy-armed dragon of legend has broken free from his arcade cabinet and is burninating the land. With classic 8-bit games leaking into the real world and Strong Badia a fiery mess, only Strong Bad can take back the night and conquer this scorching menace once and for all. Does anybody know how to kill a dragon?