A fun level with a few good secrets. You can really surprise your playing mates if you find the good teleporters (and the flamethrower). Watch the big guy at the beginning...

Visually very appealing. As far as I can tell, the pistons are for show only (there's no reason to risk getting on them...). Nice little secret alcoves.

A pretty well thought-out level. There are a few annoying glitches, but nothing fatal (even on a 68K mac). A lot of running back and forth...

Does for M2 what the OPE did for M1. Allows simple placement of objects (including baddies and bobs) on any level. Add nasties to Bungie's net levels, so you can play them solo! This version adds a much faster searching algorithm and the Marathon 2 default set.