Round1, a super freaking awesome sports center in Japan with tons of awesome games!
https://www.youtube.com/watch?v=wI-lzlkMc_o
All the important information!
Name: Round1
Site: http://www.round1.co.jp/
Price: $23 for all day pass, all these events, on the weekends
Tip: You can't leave and then re-enter, and their food sucks, so bring your own food.
Tip: They have lockers you can leave stuff in, for a 100 yen coin, which you GET BACK! So you don't actually spend 100 yen.
Tip: They also had bowling and a little archery thing, soccer kicking, manga reading in fancy chairs, a super huge kids area, free massage chairs, and tons more!
Tip: The top floor with all the big sports arenas is open to the sky, so they shut it down when it's raining heavily. If it rained previously the floor will be all wet and very slippery!