This is the gray area. The emulator itself (DuckStation) is 100% legal. Downloading a copyrighted BIOS or ROM from the internet without owning the original disc or console is copyright infringement in most countries. However, if you:
In the setup wizard or the main menu, click on . play tekken 3 on pc
Download the latest from the official Microsoft distribution network if your system lacks modern runtime libraries. This is the gray area
Extract the downloaded ZIP folder to a permanent location on your PC (e.g., C:\Games\DuckStation ). Step 2: Install the BIOS File play tekken 3 on pc