Kill an enemy by finishing him
Kill 50 enemies with a melee attack
Complete all VR challenges
Obtain the maximum level for every upgrade
Complete the game in Easy Mode
Complete the game in Normal Mode
Complete the game in Hard Mode
Kill 200 enemies with explosives
Kill 500 enemies with the Heavy Shot
Kill 50 enemies with an Execution
Conrad has to reach level 30
Obtain 100% in World Exploration
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