Most players today use the Cemu emulator on PC to run these files, as it offers better resolution and performance than original hardware.
Used to right-click "Part 1" and select "Extract Here." It will automatically pull data from Part 3.
I can then provide specific or setup guides .
The .part3.rar indicates this is the third piece of a larger split archive. You need all parts (Part 1, Part 2, etc.) in the same folder to extract the game.