Tunjungan Plaza is a very big shopping and entertaining complex located in the heart of Surabaya. You can find almost whatever you need inside. Cinema, department store, cheap clothes shops, world class boutiques, game center, department stores, book stores, electronic stores, food courts, cafes, traditional food (Indonesian / Surabayan) restaurants, international foods (Chinese, Japanese, Thai, etc), and many others.
One day is not enough to see the whole of Tunjungan Plaza. 
Even though it has very big parking spaces, it is quite hard to find a free parking area during weekend. However, vale parking is also available at more than two spots during the whole week.

Good place to shop, there's 4 building, the most favorite place for me there is the starbuck coffee...