A brief review for anyone who hasn't heard of this game yet: Thumbs-up.
It's a role-playing game, cheap and short and memorable. You control an innocent kid who's fallen into an underground world of monsters, who want to escape their cavern prison and wage war on humanity. Along your way across the underworld you meet a lazy skeleton, a nerdy scientist, a cute talking flower, a friendly nanny goat, and other monster-people who are all more than they seem. The game has strange meta-fiction elements that question the assumptions of RPGs.
The basic game mechanics are familiar, with the traditional fighting to gain experience points and levels,