No small nostalgia from the early through mid-'90s is associated with F-Zero, which I played exhaustively alone and with friends, though never esp. well. Thanks for reminding me of Psychedelia and Hangovers, which I should finally sample....
Ice Climber is one of many games that I still enjoy biannually or triannually; I agree that it's not especially good, but its niched appeal endures. When I first played it in the mid-aughts, I assumed that Legend of Lotus Spring might be prettily tedious, but it really is nice and a bit more profound than I'd expected.
You probably know better than I how so many fascinating little games for the PC-98 are floating about online....!