Play ECCO Jr emulator game online in the highest quality available. ECCO Jr is a Sega Genesis game that you can enjoy on Play Emulator. This SEGA game is the US English version that works in all modern web browsers without downloading. ECCO Jr is part of the Action Games and Ecco Games you can play here. PlayEmulator has many online retro games available including related games like Ken Griffey Jr.'s Slugfest, Al Unser Jr. Turbo Racing, and James Bond Jr.