Aqua City Odaiba
Yurikamome Daiba. Fashion for all ages, goods, etc. Restaurants in 4th, 5th, and 6th floors and a food court in the 1st floor. There is also a ¥100 shop and a Toys'R'Us including baby foods and goods, and children can actually touch and play with the toys there! on 1F, and a small Shinto shrine on 9F. The eastern part of the mall is occupied by Sony Mediage (http://www.mediage.jp/e/i...) housing a cinema and showcasing Sony products.
Wanza Ariake Bay Mall
Yurikamome Kokusai-tenjijo-seimon). Restaurants and a few shops north of the Tokyo Big Sight exhibition center.
For the self-caterers a sufficient number of convenience stores is available. A Maruetsu supermarket 1-5-3 Daiba, Minato-ku, +81 03-5531-0781, 10AM-10PM is located nearby Odaiba-kaihin-koen station and a 99 Yen shop 1-3-5-105 Daiba, Minato-ku, +81 03-3570-0599, 24 hours; food, stationery, etc. just a few steps farther north. Two 100 Yen shops souvenirs, kitchen supply, stationery, etc. are available: one in 1F of Aqua City Odaiba and the other in Wanza Ariake Bay Mall. Finally, there is a small shop The Wholesalers Market Towers Odaiba with expensive import foods and wines in The Towers Odaiba building 2-2 Daiba, Minato-ku just east of Odaiba-kaihin-koen station.
Odaiba is an unabashed paean to commercialism and features more malls than you can shake a stick at. Prices are somewhat higher than on the mainland.
Venus Fort
Yurikamome Aomi, Rinkai Tokyo Teleport. An elaborately Venice-themed shopping mall, complete with marble fountains, artificial sunsets every 30 min and an Italian "mayor" reading out speeches from a balcony. All shops are geared for women and generally quite expensive, but it's worth visiting this just for the decoration.
Decks Tokyo Beach
Yurikamome Odaiba Kaihin Koen. Features the Sega Joypolis gaming center 10AM-11PM, retro-themed arcade, a 60's-style store, gift shops, 2nd-hand western clothing stores, fine home accessories, 'Muscle Park' from the creators of the popular 'Sasuke' and 'Muscle Ranking' television shows, and Little Hong Kong for all your dim sum needs. Little Hong Kong and muscle park are now shut for renovation from May 2011 onward.