This is the most popular way to play the console version. You can upscale the graphics to 1080p or higher, making the game look better than it did on original hardware.

These games might not be exactly what you're looking for, but they can provide a similar experience.

Ben 10: Protector of Earth was never officially released for PC. It was originally launched in 2007 for PlayStation 2, PlayStation Portable (PSP), Nintendo Wii, and Nintendo DS.

Regarding the torrent download, I must remind you that downloading copyrighted content without permission is against the law and can have serious consequences. However, if you're looking for a safe and legal way to obtain the game, you can try checking online stores like:

Even if you find a legitimate ROM for emulation (obtained legally from your own disc), playing via PCSX2 or Dolphin requires a mid-range PC. Torrented “pre-configured” emulators often crash, lack save states, or include broken controller mappings.