When you are in your shop(s) and your helping customers if a princess comes in it indicates that your shop is going to get bigger. Every time you see her, your shop will most likely to get bigger unless it has reached its peak of four upgrades.
Concert Hall
When your playing Concert Hall If your screwing up or doing really bad touch the pause button then press it again and tah dah! You have a chance to restart! You can do this as many times as you want!
Hidden sequence
When you get all your stores to the fourth level, the prince will do something that includes the princess.
Princess tomako
To have princess tamaco as your helper upgrade all of your shops to royal.
Royal shops
Open the music clinic and the sushi bowl. When the princess comes in them (even if your tama shop is the smallest), she makes it a royal shop immediately.
Secret Codes
Choose "CAare" from the main menu, then touch the "Secret" tab and select "Codes". Enter any of the following codes.
Password
Effect
39356FWWBJ
Blue Windows
A7TJJ7Z882
Coffee Jelly
3427JF3TTHG
Melon Bread
The Royal Tamagotchi Family
When you upgrade all of the shops at the mall to "Royal" Status, all of the Royal Tamagotchi Family should visit the shop. Once they have all visited, the will visit all together again and a new shop will be unlocked in the centre of the mall!