My memory of yesteryear is blurry. But I'm pretty sure that I bought Double Dragon for the Nintendo 'NES' thirty years ago today. July 25, 1989.
At the time, Double Dragon was very popular.
I thought it was awesome even though I never beat it.
Years later, I got my hands on three more versions of Double Dragon.
I also obtained Double Dragon for the Sega Master System,
the Sega Genesis,
and the Atari 7800.
Out of all of those four versions, I was only able to beat DD for the Sega Genesis.