This is, by far, my favorite run n gun game.
I ran across it in an arcade about a decade ago and was impressed by how well it had stood the test of time.
Fun level designs that can be challenging. Annoying creatures like all run n guns have. The graphics are…well…beautiful.
Not as good as the later entries in the series, obviously, as this is a sort of Fatal Fury Special type deal, but for Metal Slug 2.