Kill 20 enemies
Use the grenade 25 times
Use the grenade 10 times
To die for the first time
Use a grenade
Start the game without purchasing
Pick up ammo 10 times
Kill 250 enemies
Kill 150 enemies
Complete sixth level
Kill 400 enemies
Complete seventh level
Pick up the first aid kit 10 times
Complete fourth level
Complete second level
Unlock all weapons
Unlock all perks
Kill 50 enemies
401
3012
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