Complete 10 coop missions

Travel by minecart to a point at least 500m in a single direction from where you started.

Enter an End Portal.

Befriend five wolves.

Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.

Destroy a Ghast with a fireball.

Acquire diamonds with your iron tools.

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

Harvest some leather.

Use planks and sticks to make a sword.

Construct a better pickaxe.

Use planks and sticks to make a hoe.

Construct a furnace out of eight cobblestone blocks.