Armed Seven DX, Satazius Next, Wolflame
Shmups (shoot ’em ups) might be niche, but they will never die.
There is an endless well of classics to draw upon, and at this point you could probably have a whole console dedicated to Cave shooters. Case in point: a new tri-game collection is coming to the Nintendo Switch this month.
Simply titled Shmup Collection (by Astro Port), the package includes Armed Seven DX (released on PC in 2015 and in the Dreamcast aftermarket), Satazius Next (PC in 2011 as well as Dreamcast) and Wolflame (2016 on PC). The former two are horizontal shmups and the latter is vertical.
If you want to see all three aforementioned games in action, you can watch the trailer below from Pixelheart.