A free app for Android, by SLCMotor.

Blue Steel GO Locker is the latest app designed to enhance your Android device’s aesthetic. This app features Blue Steel aesthetics designed to work in conjunction with GO Launcher and Go Locker. Before downloading this app, make sure GO Launcher EX V2.58 or above and GO Locker v1.0 have been installed. Designing this app was a labor of love that took months of careful planning and code writing to accomplish. The result is a Blue Steel styled lock screen that fits your Android device perfectly. It also offers a functional and fresh design that complements almost any home screen setup. By using this app, you will have access to a completely customizable lock screen.