Retro Game Tips for Serious Sam HD: The First Encounter (PC Games)
Achievement: Co-op Beginner
Achievement: Co-op Hippy
When:
during game
How:
Complete The Great Pyramid in co-op with blood option set to hippy.
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Achievement: Game Master
Achievement: I am invincible
When:
during game
How:
Complete the game in single player without firing a single bullet or shell.
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Achievement: Look, it's a secret
Achievement: Metropolis King
When:
during game
How:
Complete Metropolis level in single player on serious difficulty without loading.
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Achievement: Perfect Kill
Achievement: Serious Beginner
Achievement: Serious Co-opop
When:
during game
How:
Complete a co-op game on serious difficulty and extra enemy strength on 400%.
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Achievement: Serious Run
When:
during game
How:
Complete the game in single player by beating estimated time on each level.
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