Survivalist
Survive any challenge mode for 20 minutes.
25 ✓ June 7th, 2009
Killing Spree
Kill 1000 enemies during one game.
15 ✓ June 6th, 2009
Hungry Yeti
Eat 50 KGB Agents with the Yeti.
10 ✓ June 6th, 2009
City Destroyer
Destroy 25 buildings during one game.
10 ✓ June 6th, 2009
Juvenile Alien
Complete the Game on Easy Difficulty.
10 ✓ June 7th, 2009
Alien in Training
Complete Level 1-1 of the game.
5 ✓ May 31st, 2009
Perfect Fight
Defeat the Final Boss without using a continue.
30 
WMD
Reach 5000 Km in Super Soviet Missile Mastar.
20 
Expert Alien
Complete the Game on Hard Difficulty.
20 
Head Chomper
Head bite 50 enemies without touching the ground or firing.
20 
Mad Hatter
Unlock all of the 31 hats that are in the game.
20 
Adult Alien
Complete Game on Medium Difficulty.
15