Asobono

Recently opened in August 2011 it is the biggest play centre in central Tokyo that I know of. It has the main room (photo above) which is a huge ball pit full of slides, climbing frames and other fun activities and several other themed rooms including a Thomas train room (photo above), Lego, Mell-chan, Sylvanian Families, fishing, magnets, board games, toy shopping malls and kitchens, baby play room and much more.

Location: Tokyo Dome

Phone: 03-5800-9999

Hours: Weekdays 10am-6pm. Weekends and holidays 9.30am - 7pm.

Website: www.tokyo-dome.co.jp/asobono/ (Japanese only) Basic English description is available at this wesite www.tokyo-dome.co.jp/e/amusement_facilities/

Baby facilities: Baby car parking and feeding and changing rooms available. They also have a large soft area with baby toys.

Crawling:

Walking:

2-5 years:

5-10 years:

Cost: Children (from 6 months) are 900yen for the first hour then 400yen every 30min. A full day pass is 1,500yen. Adults are 900yen.
Stroller Friendly: Yes
Baby Changing Area: Yes
Feeding Room: Yes
Child Friendly Restaurant: Tokyo Dome has many good, child friendly restaurants.
Rainy Weather Option: Yes
Party Venue: Yes