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

Relieve a Blaze of its rod.

Befriend five wolves.

Turn wheat into bread.

Smelt an iron ingot.

Attack and destroy a monster.

Construct a better pickaxe.

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

Use planks and sticks to make a pickaxe.

Punch a tree until the block of wood pops out.

Finish the game at any difficulty.

Relentlessly pursue Mannix over the rooftops.

Knock out Bellick in the sewers.