Hands actually wanted to run a game of D&D, but he couldn't find the character sheet he needed, so he cracked out a copy of USR and got down to some high-fantasy hijinks. It's great to see that he had a good time and gave a really great review (even though his character met his end in just 20 minutes). More of this sort of thing!
I'm writing up a GM's guide to USR with guidelines on how to run a game and create your own monsters, but as this blogger shows, it's really easy just to create a creature on the spot or snag an existing one, like the D&D ghoul, to convert.
Get your copy of USR free - it's got brand spanking new illustrations in it!