Perfect Fight
Defeat the Final Boss without using a continue.
30 ✓ April 15th, 2007
Survivalist
Survive any challenge mode for 20 minutes.
25 ✓ April 21st, 2007
WMD
Reach 5000 Km in Super Soviet Missile Mastar.
20 ✓ April 21st, 2007
Expert Alien
Complete the Game on Hard Difficulty.
20 ✓ April 15th, 2007
Adult Alien
Complete Game on Medium Difficulty.
15 ✓ April 15th, 2007
Killing Spree
Kill 1000 enemies during one game.
15 ✓ April 20th, 2007
Hungry Yeti
Eat 50 KGB Agents with the Yeti.
10 ✓ April 15th, 2007
City Destroyer
Destroy 25 buildings during one game.
10 ✓ April 20th, 2007
Juvenile Alien
Complete the Game on Easy Difficulty.
10 ✓ April 15th, 2007
Alien in Training
Complete Level 1-1 of the game.
5 ✓ April 13th, 2007
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