The game consists of several video sequences and one task. In the first video sequence several persons are introduced. Then the viewer has to decide which one of them is the alien. Then another video is shown. Which video the viewer gets to see depends on the choice he or she made.
Sarah Jane Smith, Rani Chandra, Clyde Langer and Luke Smith are somewhere in the street. They chase after an alien, a Raxacoricofallapatorian, but the Raxacoricofallapatorian hides in a skin of a human. There are three persons who might be the alien, a granny, a school girl and a postman. Rani thinks it's the granny, because she believes that her skin doesn't fit properly. Luke mentions that there is something wrong with the postman. Clyde disagrees; he sees that the school girl is texting on her mobile phone and believes that she is communicating with the mother ship. Sarah throws her sonic lipstick to the viewer.
Now the viewer has to decide which one is the alien and needs to point the sonic lipstick towards this person to mess with the compressor of the Raxacoricofallapatorian.
Decision of the viewer
The sonic lipstick damages the mobile phone of the school girl. She asks what has happened to her phone. Sarah Jane Smith mentions that it couldn't have been her because she was texting too quickly and the Raxacoricofallapatorians are way too clumsy. Then the Raxacoricofallapatorian jumps out of the skin of the postman and chases Sarah and her friends, who try to escape.
The sonic lipstick damages the scooter of the granny. The granny can't control it any more. Sarah Jane Smith says that the granny can't be the Raxacoricofallapatorian, because she has vinegar in her basket, which is fatal to the Raxacoricofallapatorians. A Raxacoricofallapatorian wouldn't get that close to it. Then the Raxacoricofallapatorian jumps out of the skin of the postman and chases after Sarah and her friends, who try to escape.
Just when the Raxacoricofallapatorian tries to take off the human skin, the sonic lipstick is pointed at him. The Raxacoricofallapatorian screams and is hurt. Sarah says that it had to be the postman because it is evening and he still has the morning post in his bag. Then Sarah points a water pistol with vinegar at the Raxacoricofallapatorian.
- Sarah Jane Smith - Elisabeth Sladen
- Luke Smith - Tommy Knight
- Rani Chandra - Anjli Mohindra
- Clyde Langer - Daniel Anthony
The video game was available here, but it was taken of the website.