18. Robotic Operating Buddy

Another brilliantly broken peripheral for the NES, R.O.B. was an amazing marketing ploy that helped the video game industry recover after the 1983 crash—and moved a lot of NES consoles off store shelves and into American living rooms. Sadly, R.O.B. only worked with Gyromite and Stack-Up, and then only barely. It's a lemon, but a lemon we love.