– You can back it up legally using a PC with a compatible Xbox 360 DVD drive (e.g., Lite-On iHAS124) and software like ImgBurn . Even then, playing backups on unmodded consoles requires specific firmware.
These are preferred for loading directly onto internal or external hard drives on modified Xbox 360 consoles, as well as modern PC emulators. How to Play Tekken Tag Tournament 2 Today tekken tag tournament 2 iso xbox 360 link