You will need a Super Nintendo emulator to play Dual Orb 2. You can download one from my emulators page. If you need assistance with any of the emulators offered on my site, check out my emulation help subsite: Video Game Emulation for Newbies.
This is Dual Orb 2 pre-patched with the fan-based English translation. It's a great game with a quality English translation!
This is the Japanese ROM of the game. I put this here if you insist on patching the game yourself. Of which, the English patch is here for download, too. If you need assistance with patching, check out my patching tutorial.
This is the first Dual Orb if you were curious to try it out. Unfortunately, it remains in Japanese and an English version is not available.