Kill the Enderdragon.

Brew a potion.

Kill a skeleton with an arrow from more than 50 meters.

Befriend five wolves.

Discover 17 of 40 biomes.

Smelt an iron ingot.

Construct a Dispenser.

Construct an Enchantment Table.

Turn wheat into bread.

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

Construct a better pickaxe.

Use planks and sticks to make a sword.

Teleport over 100 meters from a single throw of an Ender Pearl.