Kill an enemy with a deflected bullet.
Open the Industrial Forge level editor.
Play and complete a community level.
Complete any level in co-op.
Kill every enemy in any level.
Collect every resource in any level.
Complete any level without losing a twin.
Kill three enemies with deflected bullets.
Kill three rats in quick succession.
Complete five levels in under a minute each.
Destroy a Money Bag with a Hammer or Sickle.
Shoot down the Bomber Pig.
Defeat Goldswine without using weapons.
Hit all of Ratsputin's Decoys without hitting Ratsputin.
Hit Ratsputin without hitting any of his Decoys.
Beat Blowhard's first phase without entering the water.
Defeat Tsar Boarav and Liberate The Nation.
Defeat Goldswine without the help of his reinforcements.
Defeat Blowhard's second phase without touching ground.
Defeat Tsar Boarav without taking a bribe (hit).