Into The Nether - 40 gamerpoints - Construct a Nether Portal.
Dispense With This - 20 gamerpoints - Construct a Dispenser.
MOAR Tools - 15 gamerpoints - Construct one type of each tool - one pickaxe, one spade, one axe and one hoe).
Leader Of The Pack - 30 gamerpoints - Befriend five wolves.
When Pigs Fly - 40 gamerpoints - Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.
Cow Tipper - 15 gamerpoints - Harvest some leather.
Monster Hunter - 20 gamerpoints - Attack and destroy a monster.
Time to Strike! - 10 gamerpoints - Use planks and sticks to make a sword.
On A Rail - 40 gamerpoints - Travel by minecart to a point at least 500m in a single direction from where you started.
Delicious Fish - 15 gamerpoints - Catch and cook a fish!
Getting an Upgrade - 15 gamerpoints - Construct a better pickaxe.
The Lie - 40 gamerpoints - Bake a cake using wheat, sugar, milk and eggs!
Bake Bread - 20 gamerpoints - Turn wheat into bread.
Time to Farm! - 10 gamerpoints - Use planks and sticks to make a hoe.
Acquire Hardware - 15 gamerpoints - Smelt an iron ingot.
Hot Topic - 15 gamerpoints - Construct a furnace out of eight cobblestone blocks.
Time to Mine! - 10 gamerpoints - Use planks and sticks to make a pickaxe.
Benchmarking - 10 gamerpoints - Craft a workbench with four blocks of wooden planks.
Getting Wood - 10 gamerpoints - Punch a tree until the block of wood pops out.
Taking Inventory - 10 gamerpoints - Open your inventory.