all by use

Use your best strategies in PvP battles

Use your ingenuity to escape the room

Use any Unicode character you want

Use your phone to solve the disappearance of a girl

Use gravity to guide the balls

Use backgrounds from Android 7 Nougat

Use your heroes' unique powers to defend your towers

Use fun videos as your ringtone

Use your phone's camera to solve math problems

Use saws to carefully cut blocks