Throw diamonds at another player.

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

Acquire diamonds with your iron tools.

Collect any Minikit within the 'Ghostbusters!' level

Complete ''Riddle-earth''

Complete ''Back to the Future!''

Complete ''The Mysterious Voyage of Homer''

Smelt an iron ingot.

Use planks and sticks to make a hoe.

Wear a full suit of Iron armour.

Construct a better pickaxe.

Use planks and sticks to make a pickaxe.

Open your inventory.