Serious Sam Collection achievements

Solve the riddle of the Sphynx.

Finish Serious Sam: The First Encounter

Survive the storm on the Grand Cathedral.

Complete the Medieval episode in single player or cooperative.

Complete the Persia episode in single player or cooperative.

Complete the South America episode in single player or cooperative.

Kill an enemy with a gib torn from another enemy.

Squash 10 Hatchling spiders.

Decipher an Egyptian text.

Find at least 30 secrets in single player.

Gib 20 enemies from close range with a shotgun.

Secure the bird.