Yeah, I have that too. I had the real cart at one point. The music was outstanding for the 16-bit era, especially before the SNES. (The Genesis/Megadrive had way inferior sound hardware.) The game mechanics are spot on too. I liked very few scrolling brawlers, and this was one of them. I hope it gets appreciated all over again.
Edit: Oh, man. Perfect port. I realize it's being emulated, but still. The sound is just right. The graphics are nicely filtered into the higher res. It plays exactly as I remember it. I breezed through that 1st stage with Blaze. This is SoR 2, though, not the original. I liked it even better because it expands on the original. I do miss the arrangement of the boss theme from the first game, though. That was the best.
Edit 2: . . . but Pyro said it was SoR 2. My mistake.