As rand0m said, the PC Engine (Turbografx-16 in the USA) is one of the best consoles for shooters from the 8-16 bit era. One of my favourites and exclusive to the PC Engine is Air Zonk (jap.PC Denjin Punkic Cyborg). It has funny graphics and gameplay, and really good music.
Its amazing how they jumped from platform to shoot 'em up (Bonk is the main series primarily platform). I am currently working on PC-98 and it too contains some great shoot 'em ups. Once I have worked through all the systems (some 50% remaining) I'll make sure to create videos containing the best each system has to offer and share it here.
