To get their brain working with the game the player first focusses on two chequered boxes which flash at different speeds or frequencies.
By looking at the boxes in turn a frog-like virtual character in the game, called Mawg, balances and walks across a tight-rope.
If he starts falling to the left, the player has to concentrate on the box on the right.
The game is not for sale, but it is a way for the researchers to learn how to develop the technology.
But the researchers say gamers could be attaching headsets to their own heads in a few years' time.
Sci-fi vision
The research has some serious uses too.
Scientists want to help people who can't move, but who can still hear, see and think perfectly well.
They might be paralysed or have serious illnesses which stop them using computers or even talking.
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