I’ve been trying to play Sakura taisen on twilight menu but after loading into it, the screen turns white then quickly goes black and nothing works. I don’t know if it’s that the game needs an ap patch or my twilight menu is to old for the game.
Are you talking about Dramatic Dungeon ? If yes it is working on my side, at least I can go ingame but I do not speak Japanese.
Twilight Menu is not too old as it is in active development thanks to @RocketRobz. NDS games and executables are managed by NDSbootstrap wich is part of Twilight Menu and is still in active development as well.
2) make a backup of your _nds folder and boot.nds on your computer.
3) delete them from your SD card
4) download latest twilight menu here : https://github.com/DS-Homebrew/TWiLightMenu/releases
5) extract the _nds folder and boot.nds to your SD at the root.
6) retry the rom