I think there are too many of these to list but I'll put up a few that I like and never hear much about, largely because the games were't very popular or are very old. There is a well known ost that I think is underappreciated and it's even from a well known franchise, FFX-2. It may not be normal FF style music, but I like quite a few tracks. Anyway, I guess I'll list the first few that come to mind.
Sunsoft generally had great NES music but I don't hear much mention of Gremlins 2 : The New Batch, well I hear it i the background of Jim Sterling videos sometimes so at least he has good taste.
Any Wild Arms game, but 3 is my favourite
I used to put Saturn CDs in my CD player and this was one of the regulars, pretty good music for a football game.
This was unreleased but finished and the rom is available, here is Tim Follin's only Mega Drive ost presented in the intended 50hz
Motoi Sakuraba is more well known for Dark Souls, the Tales of games, Star Ocean, Golden Sun and many other games, but early on in his video game ost career he worked on a little known Game Gear title, even on such primitive hardware you can still recognise his style.
Any Panzer Dragoon game has a great ost and almost nobody even knows the games exist, I think the first remains my favourite but since Orta is very close and includes the first game anyway, it must be the best!
I think this is a decent game, but the ost is pretty amazing
This game had a few ports but the Mega Drive version music was too good for the mediocre gameplay.
There are just to many, some others that come to my mind are Final Fantasy Mystic Quest (SNES), Skies of Arcadia (DC/GC), Gauntlet IV (Mega Drive), Darkwing Duck (NES), Zombies (Ate my Neighbours, SNES, not Megadrive though) Mega/Super Turrican (SNES/Megadrive) Sparkster+Rocket Knight (SNES/Megadrive), Pier Solar (any version), Plok (SNES), Virtua Fighter 2 (Saturn) and of course any Breath of Fire game.
Oh and Life of Pixel has some nice music styled around old consoles and computers of the past.
Last edited by Landale_Star - on 30 March 2019