|
|
 |
1. Serious Beginner
Complete any level in single player.
|
10 |
 |
2. Game Master
Complete the game.
|
20 |
 |
3. Serious Sam
Complete the game in single player on serious difficulty.
|
30 |
 |
4. I am Invincible
Complete the game in single player without firing a single bullet or shell.
|
10 |
 |
5. Serious Run
Complete the game in single player by beating estimated time on each level.
|
15 |
 |
6. Metropolis King
Complete Metropolis level in single player on serious difficulty without loading.
|
20 |
 |
7. Cannon Expert
Pierce at least 10 enemies with a single cannonball.
|
5 |
 |
8. Perfect Kill
Kill all enemies in Karnak in single player.
|
10 |
 |
9. Look, It’s a Secret
Find at least 50 secrets in single player.
|
30 |
 |
10. Co-op Beginner
Complete any level in co-op.
|
5 |
 |
11. Co-op Hippie
Complete The Great Pyramid in co-op with blood option set to hippie.
|
10 |
 |
12. Serious Co-op
Complete a co-op game on serious difficulty and extra enemy strength on 400%.
|
35 |
2010-01-13 
2010-01-13 
