Ikebukuro is home to some of Tokyo's and in fact the world's largest department stores. Here you can buy just about everything.

Tobu Department store which is located at the west exit of the Ikebukuro station is huge and is actually owned by the Tobu Group which operate several of the city's railway lines. This department like most of the other large stores are focused on high fashions and big brand names, catering for discerning customers with expensive and exclusive tastes. Hello Kitty fans will love the 7th floor where the "Sanrio Marchengallery" sells all sorts of Hello Kitty merchandise. 
 
Seibu Department Store is on the east exit of the Ikebukuro Station and also is owned by a railway operator, this time the Seibu Group. Seibu dates back to 1949 and now is one of the larger stores in Japan. They have also branched out of Japan to other regions in Asia including Hong Kong.
 
If you are interested in electrical goods Bic Camera have their main store located at the east exit of Ikebuko Station and a few smaller ones at most exits of the station. This store is monstrous there are floors of floors of everything electrical, computer and accessories, cameras, white goods, stereo systems, mobile phones and just about every imaginable and many unimaginable electronic gadget. As with most of Japan all the prices are marked on the goods and there is very little room for bargaining so it is easy to see what the item costs.
 
Mitsukoshi Ltd which has a history back to 1673 also has one of their many Tokyo store at the east end of the station. Mitsukoshi has floors and floors of high fashions and house ware and like many of Japan's department stores it's basement is filled with some of the tastiest takeaway foods found anywhere in Tokyo. There are thousands of square metres of sweets, savories, hot and cold all freshly prepared in front of your eyes. For those wanting a more formal meal, upstairs you will find the restaurant floor where there are dozens of traditional and modern Japanese cafes, restaurants and eateries plus several western and Chinese style diners.
 
Most of the stores open at 10 in the morning and stay open to 8 or 9 at night 7 days a week, with the weekends being the busiest days when thousands flock to the stores.