I always been very rare for arcades :D
The REAL arcades (I mean, arcades before the 3D era) had dissapeared from Spain long time ago. So, I remember only the ones I played when I was a child...
I remember to play hours and hours of Knuckle Joe
Too hard, but one of the first Beat'em up ever made, I think... it was released in 1985, two years earlier than Double Dragon, and three years earlier than Dragon Ninja, besides its resemblances...