Tekken Tag Tournament is an update to Tekken 3 and is the fourth installment in the 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 for the arcade before a release to the PlayStation 2. 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 home system. Tekken Tag Tournament is one of the two games in the series to be released in an alternate cover, which can be seen here (the other being Tekken 4).