Portrait videogames that are not self-scrolling vertical shmups. I think run’n’gun-type things can still qualify. Preferably pretty. Probably makes sense to exclude everything mobile.
Lethal Crash Race - Visco, 1993
Drift Out, Visco 1991
Rally Bike - Taito, 1988
Gaiapolis - Konami, 1993
Out Zone - Toaplan, 1990
FixEight - Toaplan, 1992
Nitro Ball - Data East, 1992
Rush & Crash / Speed Rambler - Capcom, 1986
Valkyrie no Densetsu - Namco, 1989