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In the film Ready Player One, Parzival uses a special Rubik's Cube that he bought.
When he uses it, everything but him (and Art3mis) goes 60 seconds back in time.
How does this Rubik's Cube work?
What do the other players see and feel? Did they see everything without being able to do anything?
And why is Art3mis included with Parzival? Does the cube have an active area/radius?
It's a nod to Back to the Future
Robert Zemeckis directed Back to the Future, and it's a Rubik's Cube that turns back time. Thus "Zemeckis Cube". Further evidence is that when Wade uses the cube, you can hear those three notes that play right before Doc Brown says "Erased.... from existence".
As for how those being turned back in time experienced it, we don't rightly know as it is never covered in the book. White Prime is probably correct that the players simply lost control of their avatars until time was reset.
Additionally, the Rubik's Cube didn't play any significant role in Back to the Future, so we can't intuit anything from there. It just looks like a simple reference to a period appropriate movie that Spielberg produced that involved time.
It works because it was simply programmed to work that way.
As the cube wound back time, the other players would've had no control whatsoever as their avatars retraced their steps. All they could do was watch their surroundings through the eyes of their avatar.
The cube must have had a bubble-radius protecting the user and anyone else touching him. Or, maybe he was able to instruct the cube to include Artemis. We can't be 100% sure.
Just to add to AMFLARE's response, the 3 notes from that scene in BTTF play when the cube is triggered, but you can also here three notes from the film series theme song while P is solving the cube. (Using Fridrich CFOP finger techniques, by the way.)
