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