A large central, waterfilled arena with a dry hill is surrounded by a matrix of passageways both above and below the waterline. Access to the hill is pretty nice for a water level. Update tweaks and aligns some textures.

A huge, rambling level. There are a few funky textures, and it's really easy to get lost, but with a big enough group, there should be something for everyone. One thing's for sure-you'll never, ever, run out of ammo.

Horrendously annoying water level (although that seems to be the point...) Four areas, separated by ledges... primary mode of transport is the water, which goes up and down a lot (and never when you want it to...).

Is a lot like the Marathon Cheater, but with a few differences. It's a bit more flexible (with more info) on stuff like Oxygen, Invincibility, etc (it'll give you approximate durations). It will add fist power-ups. (I don't know what this means... I didn't see any effects when I tried it). It will play your Marathon Music while it's working. (This can be cancelled.) It only works on the Infinity demo, M2 and the M2 Preview and Demo. $5 shareware. Update adds a very cool Full Map feature, and a bunch of 68K-only enhancements (save anywhere, start with extra health/oxygen, etc.)