From The TimeSplitters Wiki

The gingerbread man appears in all Timesplitters games as an unlockable character. In the first Timesplitters, he runs forwards and shouts 'Yippee!' when selected. In Timesplitters 2, he is one of the weakest characters in the game, a 1 star. In TimeSplitters Future Perfect, he is one of the strongest characters in the game, a 4 star. When he is selected in TS FP, he says, "Bite my chrunchy brown ass" and then dances around. Another funny character for the TimeSplitters collection.