Find the Boltcutters

Complete chapter "No Chance"

Stop starvation using Rotten Flesh.

Fully upgrade a single weapon

Defeat Mulligan and Thornton

Solve five Nursery Rhyme puzzles

Find the Crossbow

Construct an Enchantment Table.

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

Throw diamonds at another player.

Smelt an iron ingot.

Use Shears to obtain wool from a sheep.