Defeat the Final Boss without using a continue.
Unlock all of the 31 hats that are in the game.
Complete Game on Medium Difficulty.
Complete the Game on Hard Difficulty.
Reach 5000 Km in Super Soviet Missile Mastar.
Survive any challenge mode for 20 minutes.
Head bite 50 enemies without touching the ground or firing.
Kill 1000 enemies during one game.
Destroy 25 buildings during one game.
Complete the Game on Easy Difficulty.
Eat 50 KGB Agents with the Yeti.
Complete Level 1-1 of the game.
