I have yet to even consider doing a digital download of a retro game onto my Switch. Not that I wouldn't, at some point, maybe, consider it. It is just that, I have these old retro systems out and ready to go into a gaming session at any moment. Recent gaming has been Famicom and Sega Genesis.
Psycho Dream, been a while, but that is a weird game. Good action platformer. Moderately expensive game to go out and find a hardcopy. I do remember that I enjoyed playing the game and I think it would be a good game for a new generation of gamers to experience. Fire and Ice is a good puzzler. Many people that have a Switch might not have a retro console. It is good that they have access to some of this old stuff.