It's easy to make fun of Sega CD nonsense, but that's only because we heard about it in the first place. Its unknown relative, the TurboGrafx CD, was even more doomed.
Still, the add-on is home to the likes of Kaizō Chōjin Shubibinman 3: Ikai no Princess, a beautiful cacophony of a side-scroller that fully utilized the data jump for anime cutscenes and huge sprites.
The Japan-only game has a rerelease in one place: Japan's Wii U store that closes in a few hours. RIP 😔