From The TimeSplitters Wiki

I got Timesplitters 2 more by accident really. I was at a store to buy some games and needed four games to get a special sale. I grabbed Timespliters 2 thinking it was a dumb game. About a week after getting it I looked at the back of it and realized it had a mapmaker. I tryed the game and soon became obsessed with it. It's also the inly game me and my sister play together.

I am currently trying to purchase Timespliters: Future Perfect