If you’re in Odaiba and a fan of Retro stuff be sure to check out Daiba 1-chome Shotengai (台場一丁目商店街). Daiba 1-chome is a charming, retro Shopping Arcade themed for the Showa era (1925-1989). You’ll find Retro sweets, Toys, Arcade Games and more! This shopping arcade has a completely different feeling then the rest of Odaiba and is definitely a must visit! On the same floor you’ll also find the Takoyaki Museum, where you can learn everything about Takoyaki, eat Takoyaki and buy Takoyaki themed goodies.
Daiba 1-chome Shotengai and the Takoyaki Museum are both opened daily from 11:00 to 21:00 and are both a 2 minute walk from Odaiba Kaihin Koen (Yurikamome line) or a 5 minute walk from Tokyo Teleport (Rinkai line). They’re located in the Tokyo Decks Beach Seaside Mall on the 4th floor.
Official Website (in Japanese and English): http://odaiba-decks.com/entertainment/post/shop87.php