Thanks to wolves1989, who informed me that it was actually released on the PS2, I bought Hitman Blood Money, and what a game!

I've been treated already to one of my favourite Hitman levels, the prelude to Hunter and Hunted, where you must kill an opera singer and a family member who is watching him rehearse. The most fun way to do this is to kill the backup actor, and take his uniform, and switch one of the props, a gun, for a real one. You then masquerade as the actor, onstage at the climax of the performance, shoot the target, shoot his family member in the balcony above, and then leg it one out of the hotel. Fantastic game, absolutely fantastic.