Tekken Tag Tournament 2:

First you have to download PCSX2 emulator to run Tekken Tag Tournament 2
Copy Link:
http://pcsx2.net/download/viewcategory/35-pcsx2-v0-9-7-beta.html

Now U have to download torrent client.
Copy link:

http://www.bittorrent.com/downloads/complete?os=win

Now you are going to download Tekken Tag Tournament 2
Copy Link:
http://www.torrenthound.com/hash/a15e21515b432e2b8ce3829f5bda2fe6d77e0546/torrent-info/PS2-Tekken-Tag-Tournament-NTSC-iso

Enjoy!!!