Can YOU Solve the Mystery?

Well, with not much else happening at the moment, here’s a challenge for you.

Recently, I unearthed a mix CD that I made years ago and hadn’t listened to in a very long time. On it, I found a handful of tracks which I recognised, but couldn’t identify. All I could remember is that they’re from a game soundtrack and that it’s a game I never owned.
So, knowing that people on the internet like a challenge, I’ve uploaded the mystery music to YouTube. There’s 5 tracks, each with its own video, and I’ve put them as a playlist.

Neato text ornament here