Catch Photocopier with your face

Defend LA. (Complete "Homecoming" on any difficulty.)

Find Ajax. (Complete "Struck Down" on any difficulty.)

Rendez-vous in Fort Santa Monica. (Complete "Brave New World" on any difficulty.)

Build some bookshelves to improve your enchantment table.

Smelt an iron ingot.

Acquire diamonds with your iron tools.

Attack and destroy a monster.

Stop starvation using Rotten Flesh.

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.

Craft a workbench with four blocks of wooden planks.