Saviour as it has multiple items at one place.

This Japanese department store was pretty fantastic. Very brightly lit. Great selection of toys and video games. Lots of gundam kits

You can buy anything from this place. Tax free items available for tourists. But you have purchase more than 5000 yen.

Bic Camera is probably the best electronics store I've ever gone to. It's multifloored, so you don't feel like you're in a warehouse, the selection is impressive, and the employees aren't intrusive. Great place.

It is one of the largest Bic cameras in Tokyo, it is well located and you can find almost everything tecnological here, they even have a well stocked wine section, you can find beers and wines from around the world, they also have a pharmacy in the basement just beside the subway access, and a golf section in the top of the building.

A chain shop that sells everything... tv's to toilet seats, homewares to alcohol. Well laid out. Great to browse

so amazing and great prices

Great selection of general goods, from toys and office stuff to games and cameras. 08 floors of well-spaced, very organized goods for sale, and some of the staff also understands English. Prices seemed reasonable and open time (10am to 10pm as of 19/jan) is also attractive. Good location, just above the Akasaka-mitsuke subway station.