"Mouse on Screen Scary Joke" is an Android application developed by Just4Fun. The app is designed to display an animation of a shaggy mouse walking across the screen of your phone, with the mammal always displayed in the foreground. This prank app offers natural and fluent movements of the mouse with choices to set the screen edge of the animal's movements and the time after which the animation will appear. The frightening effect of the rodent is so realistic that you can scare your friends easily. The application also provides a transparent icon to remove the rodent, making it easier to prank your friends.

Moreover, "Mouse on Screen Scary Joke" can also serve as a toy for your cat. Show the virtual mouse to your cat and watch as it chases after it and tries to eat it.

Overall, "Mouse on Screen Scary Joke" is a unique app that provides entertainment and fun for users who want to prank their friends with a realistic animation of a mouse walking on their phone screen.