I remember beating Tomb Raider 2 a couple of times in a row.It was my first PS game ever so i was quite ecstatic about it but i still think it was one of the best games on Playstation.I did the same with TR 3 mostly because i wanted to explore all the different routes and get all secrets.
I also did that with
Resident Evil 2
Silent Hill 2 (i wanted to see all endings)
and Resident Evil 4