I went bowling with friends last night at Round One, a six floor mega entertainment complex. It was about $5 per hour each, and the five of us had a great time until 3am. They have Japanese bowling (mini everything), karaoke, electro-darts, scads of video games like you've never seen, bike racing, skating, and just about every mind-numbing thing you could imagine. It's a great place to go for fun. I don't have the exact address, but if you take a taxi, just say "Round One, kudasai" and they will know it. Have fun!