Gunstar Heroes (1993) is widely considered to be one of the best action games on
the Sega Genesis — ironically, being commercially unsuccessful due to poor promotion.
It features a variety of melee attacks, as well as 4 basic weapons which you can
combine in pairs (making a total of 14 combinations) — all densely packed in a swift
and explosion-heavy gameplay spanning over seven uniquely designed stages.
This single-player run by Jackic plays through Normal difficulty. Among other
changes, in Normal difficulty, weapons do more damage, and the boss of the second
stage has fewer forms. For a two-player run on Expert difficulty, see
this movie.