Eat a Notch Apple.

Stay underwater for one full day without using potions.

Defeat an Elder Guardian.

Use a Dried Kelp block as fuel in a furnace.

Power a Furnace with Lava.

Destroy a Ghast with a fireball.

Collect any fish in a bucket.

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

Tame a Horse.

Cure a zombie villager.

Relieve a Blaze of its rod.

Gather all 16 colours of wool.

Visit all Nether biomes [Bedrock Only]