Tokaigi Game Party is, well, a mega gaming party taking place at the Makuhari Messe convention center. The weekend line up includes game tournaments, game commentary, a hands-on game area, musical performances, cosplay, workshops, game-themed food court, original goods shop and more. A lot of game stuff, got it?
1-day ticket: Advance 1,500 yen / Door 2,000 yen
2-day ticket: Advance only 2,500 yen
If you want to buy tickets in advance you must use the Japanese version of the site. You can get away with using Google Translate though.