Shake! Scary Face Live Wallpaper is a free Android app developed by Wasabi. It is categorized under Lifestyle and is a great addition for Halloween season. The app features a scary face that shakes and reveals itself on your screen. You can also load your own photos by enabling the "Custom Photo" option in the settings screen.

To use the app, simply go to your Home screen, then Menu, then Wallpapers, and select Live Wallpapers. The app is supported by ads in the settings, which help in the development of more free live wallpapers.

One thing to keep in mind is that if your wallpaper resets to default after reboot, you will need to put the app on your phone instead of the SD card. Overall, Shake! Scary Face Live Wallpaper is a fun and easy way to add a spooky touch to your device during Halloween season.