Warning: Many websites from 2021 are filled with pop-up ads or fake APKs. Do not download standalone APKs claiming to be the "PSP Game." You need the + ISO file .
The most popular official Attack on Titan console games can be emulated on Android using more powerful emulators than PPSSPP: download game attack on titan ppsspp android 2021
Move the SAVEDATA and TEXTURES folders to Internal Storage/PSP/ . Move the .iso file to your preferred games folder. Warning: Many websites from 2021 are filled with