Play X-Band Modem BIOS Online
Plug a clunky modem into your SNES, dial up strangers across the country, and pray your Mortal Kombat match doesn’t freeze mid-fatality—this was online play in 1995.

Back in 1995, Catapult Entertainment released the X-Band Modem for the Super Nintendo Entertainment System. It was a peripheral that let you connect your console to a phone line, opening up a new way to compete with players far beyond your living room. This was a time when online console gaming was still experimental, and the X-Band offered a glimpse into what multiplayer could become.
You don't control a character in the traditional sense; instead, you use the modem to play supported games like NBA Jam or Mortal Kombat against human opponents over dial-up. The main objective is simply to win matches, but the experience hinges on managing the connection itself. You dial into the service, wait for matchmaking, and hope the lag doesn't ruin your combos. Matches are often tense, with every input delayed just enough to keep you guessing. It feels raw and unpredictable, a genuine test of patience and skill against a real person you can't see.

Download X-Band Modem BIOS ROM
You can download this ROM to play X-Band Modem BIOS offline using an Super Nintendo (SNES) emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.