Obliterate 50 enemies with a single shot of the Calamity Blade.

Reach the end of 'Sigil'.

Reach the end of 'The Plutonia Experiment'.

Reach the end of 'Master Levels for DOOM II'.

Complete the bounty set.

Defeat 10 enemies in a row with a single punch, after softening them up with gunfire.

Defeat 200 enemies with the GAU - 19.

Defeat 50 enemies with the M79.

Defeat 70 enemies with the SAS - 12.

Complete the treasure set.

Complete all puzzles.

Complete all rubbings.