I was 14 in 2000. grabd theft auto was still in 2D (and thus unfun to me). I got this game from a friend and we played it or I watched him play a bit. I took it to another friends house and we booted it up. First real level is actually just tutorial level #2. You're on a roof with a rifle and a fairly simple task.
My friends dad came home and he was stunned. He had never seen a game where you are a bad guy. He said this aloud and I realised "I have never seen a game where I am a bad guy"
This is fun. Now it's 2016, I'm 30. I meet hitman fans IRL and they are amazed at how old I am (right @DrowNby47) but I still love this game and I still like that 47 isn't exactly a good guy (although they have tried to Han Soloize 47 into a basically good guy).