Step on 40 enemies after using the Shrinker on them.
Earn respect and get 500 total kills in ranked Dukematch games (Online).
Get 250 total kills in ranked Dukematch games (Online).
Get 100 total kills in ranked Dukematch games (Online).
Finish the "Hollywood Holocaust" level in under 3 minutes.
Complete "The Birth" on any difficulty or in co-op.
Find 70 secret areas.
Step in a pile of excrement.
Complete "Shrapnel City" on any difficulty or in co-op.
Complete "Lunar Apocalypse" on any difficulty or in co-op.
Complete "L.A. Meltdown" on any difficulty or in co-op.
Tip an exotic dancer.