Check it out! Click on the green flag to clear the page. Tap on the up arrow, down arrow, or right arrow. Wait about 10 seconds between each key pressed, or press them at different intervals. Tap the "A" key for a surprise. Click on the space bar, up and down arrow together if you want some beats to go forever ;).
Credits to BootUp for this excellent idea! Students are learning about different event blocks that can be used to trigger algorithms.