Sky1981
Fending off the urge
Warriors of virtue was pretty good.Double Dragon, Streets of Rage and Final Fight were the best three side-scrollers.
Die hard nakatomi plaza.
4 men ninja turtle beat em up.
The avengers 4 men arcade.
Spiderman maximun carnage
Double dragon 2 SNES version
But street of rages 2 still edges it, for the depth of the moves and you need to actually think of the moves to win instead of pure mashes them up.