[Andrew Hackard]

So here's what we're doing.

The Can of Worms is a monster, but it hides out in the Treasure deck. When you get it, you must reveal it immediately (because you opened the Can of Worms!) and begin combat, even if you have already fought this turn. If the Can of Worms was part of the Treasure hoard from another monster, you cannot claim any of that Treasure unless you can also defeat the Can of Worms. You do, however, get any levels you are entitled to, unless you die during the second fight (because dead munchkins can't level up, no matter how hard they want to).