I was recently playing Combatribes. If you don't know it, it's an arcade beatemup game, done by the same guys who earlier did Renegade.
And you know what? It really feels like a proper sequel to Renegade. It's the same style of game - small area of fighting, first some regular enemies, later fight with the boss. And it's pretty cool.
You can watch video here (I don't know yet how to embed Youtube on this forum):
https://www.youtube.com/watch?v=JG0tVG9SltA
or play it online (SNES version, very good but missing a few moves from arcade)
http://www.snesfun.com/play/combatribes/277
Seeing it on Spectrum would be great.