Play a music disc in a Jukebox.

Throw diamonds at another player.

Turn wheat into bread.

Kill a creeper with arrows.

Destroy a Ghast with a fireball.

Befriend five wolves.

Construct one type of each tool (one pickaxe, one spade, one axe and one hoe).

Spawn the Wither.

Deal nine hearts of damage in a single hit.

Discover a Shipwreck.

Craft and place a sign.

Smelt an iron ingot.