Megan Fox. (AP Files)

Megan Fox has developed a string of fake personalities to sex-up her Hollywood image.

The sexy star has become infamous for delivering stinging soundbites and curious anecdotes about her eccentricities, stirring up controversy this year by comparing her Transformers director Michael Bay to Adolf Hitler and admitting to "bouts of schizophrenia".

But the 23-year-old actress reveals she's simply playing a game with the media every time she makes outlandish claims and comments - and then sits back as fans and critics alike try to figure out what's for real.

In an interview with New York Times magazine, she explains, "I've learned that being a celebrity is like being a sacrificial lamb. At some point, no matter how high the pedestal that they put you on, they're going to tear you down. And I created a character as an offering for the sacrifice.

"I'm not willing to give my true self up. It's a testament to my real personality that I would go so far as to make up another personality... The reality is, I am hidden amongst all the insanity. Nobody can find me."