Set the variables, click the flag to start the alarm, and set your volume to the max. You can set your own alarm sound, and it's really simple: 1: Click the "See inside" button. 2: Click the "Sounds" tab in the "Sprite1" sprite. 3: Upload your sound. 4: With your sound, keep clicking the "Louder" button, until it doesn't let you anymore. 5: Set your sound in the "Set your custom sound here." dropdown. Play a video on another tab on loop and mute on.