Given I bloody started this topic I've not been too active in it. Well I've been completing, behind the scenes!
First up, Metroid Fusion! My first playthrough; a really fun time, if a bit short; and not quite as good as Super Metroid. I have yet to try Zero Mission, one day perhaps.
Splatatatatatatoon! The single player campaign was surprisingly good, I need to get the Amiibos one day...
Why did I beat this game? Just Cause... 2! One of my favourite games, it's just so much fun slinging yourself everywhere and blowing shit to pieces. JC3 is going to be goddamn insane, and I cannot wait.
House of the Dead 3 got a Windows port, and nobody told until last week. I've played it quite a lot, including a straight run-through. Incredibly good fun here.
Hilariously bad picture quality, but I beat 3D Gunstar Heroes on 3DS today. In short; GET IN MY TOP 5 MEGA DRIVE GAMES. The challenge is just right, the game is fast and fun, and it looks and runs beautifully. Goddamn, I had a blast with this one, I fully recommend it. That's me done for now, later.
If you're modding the PC version you won't get far, at least from my experience. SA2PC uses compressed DDS archives that reduce image quality to shite, and if you try to make the archives too large (as proper HD textures would require you to), the game crashes. Though if you've already made progress, I'm certainly interested! It's a solid idea, and there's always the chance I missed something. It MIGHT be possible on the Dolphin emulator though. Not sure. I vaguely recall texture packs being a thing there.