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.

"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."

"But you will be given a chance. Every time I will give a clue where I am. Anyone who would be able to spot me, would get one point. Like this whoever wins seven points will win the game. My friend Sachin Tendulkar will give you the first clue where I am, " he added.

Releasing Dec 25, the film also stars Kareena Kapoor, Sharman Joshi and R. Madhavan. Directed by Rajkumar Hirani, the story revolves around two idiots (Sharman and Madhavan) who are in search of their friend played by Aamir.

Vidhu Vinod Chopra, producer of the film, said: "My hero has disappeared. Where he has disappeared no one except Sachin Tendulkar has any clue."

Cricketer Sachin Tendulkar will give the first clue of Aamir's whereabouts.

Aamir will disclose where he is within 48 hours after he gives the clues. All the clues will be available in www.3idiotsacademy.com.

Rohit Sharma, who has designed the game, said: "I and Aamir have conceptualised the game together. It is an alternative reality gaming."