Duke's back at it in Zero Hour.

Your mission is to find all the time machine parts, and defeat the evil aliens which are invading Earth.

The game is 21 levels long, and they get proggressively harder.

The main thing is that you are kickin' some alien arse!

I don't know if this is a review or not, anyhow.. If you walk up to a toilet in any level,(don't destroy it yet), go up to it and press B. Duke will take alittle wizz and be happy about it :P