Tekken Tag Tournament is the fourth main installment in Namco's popular Tekken fighting game series. It, however, is not canonical to the Tekken storyline. The game was originally available as an update kit for Tekken 3. Tekken Tag Tournament was originally released as an arcade game in 1999 before it was ported to the PlayStation 2 in 2000. The arcade version operated similarly, but ran on a 32 bit graphics engine like Tekken 3. It received upgraded graphics when it was ported to the PlayStation 2. It, along with Tekken 4 and Soulcalibur II, was re-released in 2008 as a part of Namco Classic Fighter Collection. Its sequel Tekken Tag Tournament was released in 2012.