Serious Sam HD: The First Encounter

Achievement:

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

 