Complete Chapter 1 - 1 on any difficulty setting.

Destroy the Salamun Bridge ATAC in under 1 minute 30 seconds

Complete Salamun District on any difficulty level

Complete Visari Square on any difficulty level

Complete Corinth River on any difficulty level

Complete all story levels without dying, with the exception of those levels that only end when you die

Destroy the Metal Gear REX boss

Collect 1,000,000 points over all levels you have played

Create a living creature with at least 2 eyes, 2 legs or wheels, and a brain

Tag a community level

Build and save a level with more than one player with the thermometer more than 30% full

Complete a level with more than one player