Barely played Parodius, only a little of Parodius Da on the NES. Hell, I've barely played Gradius, only 3 and 5...
Twinkle Star Sprites was awesome, I remember the first time I was exposed to it was my friend's brother. He actually had a Neo Geo cabinet in a small apartment bedroom, easily visible from the corridor too haha. People are playing it online too, on 2dfighter. Matches can last for quite some time.
And of course there's also Phantasmagoria of Flower View, Touhou's equivalent...