I was just trying a few games at random tonight and came across Gunbird 2 - it's quite similar to Lightning Fighters (bullet hell vertical shooter) but is better executed all round.
I'd never seen this (or the original Gunbird) before, I'm guessing perhaps they only appeared in Japan?
Anyway, for fans of these types of games, I recommend trying out Gunbird 2. Runs really nicely on a Rpi 3.