The Japanese Tekken-net website went down for about 4 hours today for scheduled maintenance but now that's over, they've added a new batch of customizations into the game. For this summer in Japan, they've gone ahead and added a bunch of summer related swimwear for the cast. Bikinis were given to the girls and the males all got the option to go topless in the game now. Full details on the summer campaign if you're interested in participating can be found on the official Tekken website.
TEKKEN-OFFICIAL ≫ http://www.tekken-official.jp/news/?p=2044