This is a rescue mission
First : Set the rescue region
Second part : Find the light
First : Use our white tape to make a region,then turn off the light
Second : Turn on the flashlight which is our target
Third :Press the button and start to search until reaching the destination .
When finding the light,play jingle bell
search the light until 120<light<350
slow the speed when close to the target
stop and play the music