Here is the full list of all 15 Duke Nukem 3D: Megaton Edition trophies - there are 13 bronze, 1 silver and 1 gold.
Complete "Shrapnel City" on any difficulty or in co-op.
Step in a pile of excrement.
Complete "Lunar Apocalypse" on any difficulty or in co-op.
Step on 40 enemies after using the Shrinker on them.
Complete "L.A. Meltdown" on any difficulty or in co-op.
Tip an exotic dancer.
Complete "The Birth" on any difficulty or in co-op.
Find 70 secret areas.
Finish the "Hollywood Holocaust" level in under 3 minutes.
Get 100 total kills in ranked Dukematch games (Online).
Get 250 total kills in ranked Dukematch games (Online).
Earn respect and get 500 total kills in ranked Dukematch games (Online).
Complete "Duke It Out In D.C." on any difficulty or in co-op.
Complete "Duke: Nuclear Winter" on any difficulty or in co-op.
Complete "Duke Caribbean: Life's A Beach" on any difficulty or in co-op.