im planning on spending a bit more on a physical copy myself
https://www.amazon.com/Azure-Striker-Gunvolt-Pack-Nintendo-3DS/dp/B01I5L69PU?tag=viglink124929-20
s-rank is supposed to be hard. even as a veteran of the genre, it should take many tries to get s-rank.
the difficulty was only part off the appeal of the game, long as the other parts still hold up then im good for gunvolt 2.