By no means definitive, but here's five tracks that I really like.
Tomb Raider - Main Theme - https://www.youtube.com/watch?v=fIWLT0QVPzw
This has long been in my number one slot. Beautiful piece and super effective when used in a game that is very light on music.
Donkey Kong Country - Fear Factory - https://www.youtube.com/watch?v=v18pEFQb3EM
A lot of good music mentioned from this series already, but this was always my favourite. Also shares its name with a great band. "Life in the Mines" is also another choice cut from this series.
Resident Evil - The Night Begins - https://www.youtube.com/watch?v=CMDM1FReeJg
I suppose this is more a shout for the entire soundtrack, which is a major reason why this game is so good. This track is the first one that comes to mind when I think of the music.
F-Zero X - Dream Chaser - https://www.youtube.com/watch?v=EUSxabS5_qM
This soundtrack appeals to my love of metal. This one is super melodic with great lead work.
Street Fighter II - Ryu Theme - https://www.youtube.com/watch?v=IFbn4nuTMj8
Lots of choices from this game, but this one always stuck out (along with Ken's theme).
