Press, tap, or hold the space bar to affect Kermit's horizontal movement and appearance. The space bar will move Kermit to the right, and it will wrap around off the right edge and back to the left. Pressing the up or down arrows will control Kermit's vertical movement, and the "b" button will show a different background.
This project is an extension based on an old project from PLTW CSP. I am using their original project to explain and introduce Scratch and programming concepts.