Perfect Fight
Defeat the Final Boss without using a continue.
30 ✓ January 1st, 1753
Survivalist
Survive any challenge mode for 20 minutes.
25 ✓ September 5th, 2008
Expert Alien
Complete the Game on Hard Difficulty.
20 ✓ September 6th, 2008
Adult Alien
Complete Game on Medium Difficulty.
15 ✓ September 6th, 2008
Killing Spree
Kill 1000 enemies during one game.
15 ✓ June 11th, 2008
Hungry Yeti
Eat 50 KGB Agents with the Yeti.
10 ✓ September 5th, 2008
City Destroyer
Destroy 25 buildings during one game.
10 ✓ September 5th, 2008
Juvenile Alien
Complete the Game on Easy Difficulty.
10 ✓ September 6th, 2008
Alien in Training
Complete Level 1-1 of the game.
5 ✓ June 11th, 2008
WMD
Reach 5000 Km in Super Soviet Missile Mastar.
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