Let’s go buy some toys!
The toys in the toy store are priced low but the cashier is finicky and will only let you buy the toy if you provide the correct amount with the specified number of coins. Get extra time for completing a level and buy as many coins as you can before time runs out.
Drag and drop the coins from the left side to the white circle on the right side of the screen. Once you drop the correct amount using the specified number of coins the cashier will take your coins, ring up the sale, and present another toy to purchase. If you want to get rid of a coin in the payment area, just drag and drop it outside of the circle.