Wonder Boy in Monster World

Finish the game.

Collect all legendary equipment.

Collect all the heart containers.

Use all types of magic.

Meet Poseidon.

Meet the Elder Dragon.

Meet the Sphinx.

Find the "Welcome to Monster World" sign.

Find the precious Charm Stone.

Do not skip the SEGA logo sequence.

Guard against 10 attacks by spinning a spear-type weapon.

Try staying at an inn without enough gold.