John Lydon was up to his usual rock 'n' roll ways as he launched a new interactive computer game.The Sex Pistol was in London to promote Guitar Hero III: Legends of Rock, and the punk star did his best to uphold his reputation as a rebel by lighting up on stage.The game features two of the Sex Pistols biggest hits and players are able to jump around and pretend to be a member of the legendary band.But despite being Legends of Rock, Johnny revealed he and his bandmates are no good at playing the games themselves."I can't play guitar. Steve Jones who did play the guitar for Guitar Hero, he can't play the game at all. He's absolute rubbish."The 51-year-old also known as Johnny Rotten is preparing for a five-date tour with his band to mark the 30th anniversary of their album Never Mind The B******s.© Independent Television News Limited 2007. All rights reserved.