Achievements:
Complete the following achievements to award the indicadeted amount of
Xbox Live Gamerscore gamerscore points.
Alien in Training (5 gamerscore points):
Finish level 1-1.
WMD (20 gamerscore points):
Reach 5000 km in Super Soviet Missile Master.
Survivalist (25 gamerscore points):
Survive any challenge mode for 20 minutes.
Perfect Flight (30 gamerscore points):
Beat the final Boss without using a single continue.
Mad Hatter (20 gamerscore points):
Unlock all 31 hats.
Killing Spree (15 gamerscore points):
Kill 1,000 enemies during one game.
Juvenile Alien (10 gamerscore points):
Finish the game on the Easy difficulty level.
Hungry Yeti (10 gamerscore points):
Eat 50 KGB Agents with the Yeti.
Head Chomper (20 gamerscore points):
Head bite 50 enemies without touching the ground or firing.
Expert Alien (20 gamerscore points):
Finish the game on the Hard difficulty level.
City Destroyer (10 gamerscore points):
Destroy 25 buildings during one game.
Adult Alien (15 gamerscore points):
Finish the game on the Medium difficulty level.
