Bring Peanut Butter on Twitter: "If you want to use the PPSSPP emulator to play 'Tactics Ogre: Let Us Cling Together', those are the settings I'd recommend to get the cleanest image.
PSP is on Nintendo Switch via RetroArch PPSSPP : r/emulation
PPSSPP (PSP Emulator) now available on Nintendo Switch - Wololo.net