Find the hidden tunnel in Caspian Border

Complete the Gauntlet of Archimedes

Use the Eyes of Truth successfully

Collect all of the Phoenix Feathers

Ring out an enemy with the Club

Reconstruct the Water Wheel of Kirra

Breathe the toxic gases within the Oracle's Temple

In Revelations, wear three different hats.

In Revelations, override all of the Corruption Engines before round 6.

Complete the Suez mission in the Campaign

Find 12 collectibles in the Campaign

Obtain 6 000 points in the Suez mission in the Campaign