Some of the user-made missions are monstrous slug-fests.

Off the top of my head, they are:

- Hedgehog at Potatopov
- Heavy Metal Hill
- Fleas vs Gnats
- The Dust-up

attack

Some are just slightly smaller:

- Things that go Boom in the night
- Encounter at Dzherkiybits

ar15

"It's fascinating to think that all around us there's an invisible world we can't even see.
I'm speaking, of course, of the World of the Invisible Scary Skeletons."