Aamir Khan has come up with an unique way to promote his forthcoming film "3 Idiots" -- he has launched a game where one has to spot the Bollywood star who will travel across the country for two weeks in different get-ups.

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"Everyone is welcome in this game. I will play this game with you and my audiences. If you are watching this video, you are already a part of the game," Aamir said in a recorded video message shown here at the game launch function Friday.

"For next two weeks, I will be on an adventurous tour. I will be visiting different cities and villages across the country but no one will have a hint of it, until I wish. I will be among you, but you won't be able to recognize me."