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1. Serious Beginner
Complete any level in single player.
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10 |
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2. Game Master
Complete the game.
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20 |
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3. Serious Sam
Complete the game in single player on serious difficulty.
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30 |
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4. I am Invincible
Complete the game in single player without firing a single bullet or shell.
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10 |
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5. Serious Run
Complete the game in single player by beating estimated time on each level.
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15 |
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6. Metropolis King
Complete Metropolis level in single player on serious difficulty without loading.
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20 |
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7. Cannon Expert
Pierce at least 10 enemies with a single cannonball.
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5 |
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8. Perfect Kill
Kill all enemies in Karnak in single player.
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10 |
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9. Look, It’s a Secret
Find at least 50 secrets in single player.
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30 |
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10. Co-op Beginner
Complete any level in co-op.
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5 |
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11. Co-op Hippie
Complete The Great Pyramid in co-op with blood option set to hippie.
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10 |
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12. Serious Co-op
Complete a co-op game on serious difficulty and extra enemy strength on 400%.
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35 |