As for games using tate modes, just basically go through the japanese shmup library, I think Galactic Attack / Layer Section is the only usa released game to have that mode.
If you are using SSF, you can press 0 on the numeric pad to rotate the screen around for tate games (only in d3d mode, doesnt work in directdraw).
Some games having tate modes:
Capcom Generation 4
Donpachi
Gunbird
Strikers 1945
Shienryu (Shienryu was actually running in hires mode to preserve all detail if you didn't rotate the screen)
Soukyuu Gurentai Otokuyou (the Battle Garegga minigame only)
I'm inclined to believe that all arcade games that had tate modes retained them on the Saturn. Including all Psikyo shmups, all rotated CPS1-2 ports by capcom, etc.. Most of them had a plethora of options as well, for different displays - zoomed regular mode with smaller screen and the camera following you, scaled down regular mode (showed all but less detail, except for Shienryu, see above), rotated mode, rotated mode with regular controls (transforming the game from vertical to horizontal shmup), and so on. Donpachi in particular was very rich in this regard, you could use the pause menu to edit the scale %, offset, standard/rgb/full tv display modes, and others.
Also, in the topic of widescreen games. Darius II had an extremely wide screen mode. The original arcade version used 2/3 monitors (varies with editions) placed next to each other. The Saturn port just used zooming powers. Although, this lost a lot of detail when you zoomed out as it used standard low resolution (hi-res in the cutscenes and menus, though).
It was not designed for this letterboxed game mode though, things like the option menu are still displayed in fullscreen and your score tally is always on the top/bottom parts. I think their offset is adjustable though.
If you are using SSF, you can press 0 on the numeric pad to rotate the screen around for tate games (only in d3d mode, doesnt work in directdraw).
Some games having tate modes:
Capcom Generation 4
Donpachi
Gunbird
Strikers 1945
Shienryu (Shienryu was actually running in hires mode to preserve all detail if you didn't rotate the screen)
Soukyuu Gurentai Otokuyou (the Battle Garegga minigame only)
I'm inclined to believe that all arcade games that had tate modes retained them on the Saturn. Including all Psikyo shmups, all rotated CPS1-2 ports by capcom, etc.. Most of them had a plethora of options as well, for different displays - zoomed regular mode with smaller screen and the camera following you, scaled down regular mode (showed all but less detail, except for Shienryu, see above), rotated mode, rotated mode with regular controls (transforming the game from vertical to horizontal shmup), and so on. Donpachi in particular was very rich in this regard, you could use the pause menu to edit the scale %, offset, standard/rgb/full tv display modes, and others.
Also, in the topic of widescreen games. Darius II had an extremely wide screen mode. The original arcade version used 2/3 monitors (varies with editions) placed next to each other. The Saturn port just used zooming powers. Although, this lost a lot of detail when you zoomed out as it used standard low resolution (hi-res in the cutscenes and menus, though).
It was not designed for this letterboxed game mode though, things like the option menu are still displayed in fullscreen and your score tally is always on the top/bottom parts. I think their offset is adjustable though.
