That's why this is a brilliantly played barbarian. They think they are clever but will still have to do things the hard way.

Is there an actual plot to Mimi, or is she just a complete chaos goblin?

I've always seen it as outside of their control. It's not that the lying guard _chooses_ to lie, it's that they're incapable of _not_ lying.

The first time I encountered a version of this riddle it actually wasn't Labyrinth. It was an old black and white episode of Dr Who aired on PBS when I was a little kid. Same scenario but if I recall, robots instead of guardsmen. I think the good doctor solved the riddle in the typical way of asking one robot what the other would say. I'm looking for it now but I can't find the scene.

One question per group. Also now you die because murder.

Simply goblin

I got an unexpected laugh from Rick and Mortys take on this. His answer was "you ever fuck this guys wife?" And watched them fight to the death.

https://www.giantitp.com/comics/oots0327.html

Knowing who lies and who tells the truth doesn't tell you which door leads to the prize and which to death.

That's why it's funny.

So the traditional answer here is to ask them to point at the door the other guard will say is safe. However, I'm curious, does anyone know of any other valid solutions?

This still doesn't accomplish the goal of knowing which door will kill you. All you've done is determine which guard is the liar.

So you ask them which way leads to the castle and you don't pick the way they say. If we're assuming that these things are actually bound by some kind of rule stating they literally cannot lie or literally cannot tell the truth.

But you asked your one question to the one remaining guard. You gained no intel.

I believe that's the joke. The barbarians intelligence isn't usually very high.

But the other party members haven't

"Is the guard that tells the truth standing in front of the safe door?" If they say yes, you go through their door, if they say no then you go to the other one

In fact, the lying guard is a red herring. You get one question, and need one piece of info: the door. The canonical question doesn't tell you which guard lies, nor do you care to find out.

The riddle only makes sense as such with one question in total. The trick is to ask one guard what the other guard would say is behind a particular door.

The riddle is worded vaguely and we just murdered one of the guys. I think we can lawyer another question out of them.