After playing the PC-Engine, Megadrive Mini and Switch versions of the first Darius, I can safely say the PS4/Switch version is the WORST way to play the game. I mean just look at this insanity, you're reduced to 1/3 of the screen.
It's so small I can't see anything!
You're better off playing this on the PC-Engine mini or MegaDrive / Sega Genesis mini