Well, Tobi pressed her own color, so her own door will also open, right? Alternatively, she'll leave without hastle and find that the other two's doors are still closed. When they open, she'll know they pressed each other's colors.

This seems more and more like a massive study in sociology, performed by some alien/nonhuman race.

This segment seems designed to study what makes human betray each other.

Imminent betrayal!

The prisoner's dillema's getting pretty complicated.

Tobi, don't press buttons before the creepy smiley face is done talking!

Someone (or two of them) will want to delay Tobi, so I'm almost certain she faces a trip to the cellar. Maybe she'll find something useful there.

Are you allowed to press more than one button? Pressing everyone's button but your own would be the obvious backstab in that case, presuming you knew, or rather, thought you knew the code for the ball.

The blonde idiot with delusions of adequacy will probably try something like that. But you know, if I were a sadistic game designer, I'd be sorely tempted to leave a few red herrings around to weed out the overly trusting.

huh I wonder if annoying blonde will pre Tobi's button and shell have to escape

So it says that if two poople press the same color, so if you press your own color (like red) and one other guy will press red, will your floor open up?

huh I wonder if annoying blonde will pre Tobi's button and shell have to escape

@Bisected Whoa! It IS the prisoner's dilemma! The "5 digit code" is a nice additional complicating factor to keep everyone from simply pressing their own button to progress.

Levin, don't you dare to press the red button... also, I really want to know what's down there. Spiders? Snakes? A really hard puzzle? Or just the classic pit-of-death?

Alternative option (in case somebody doesn't press their own button):

Tobi has pressed her own button. Suppose one of the other players presses someone else's button.
After waiting a moment to ensure everybody's had a chance to press a button, Tobi presses a different button and leaves out the back door.

She checks and looks for what door is open. She goes in there and presses that door's button. Then, all own-color buttons are pressed.

Tobi (and whoever else pressed their own button) can continue, since all own-buttons are pressed. The person who went back...will arrive, realizing that everyone else already went on.

I think Levin knows where to look for the 5 digit code. He did walk on the rainbow carpet earlier and people noted that there was a number on the wall.

@Daran: Ah, but is there any reason to believe any numbers found on walls represent the code for the ball?