Use the up, left, and right arrows or a, d, or w on your keyboard to move. For level 4 and 5 put your mouse on the flag and touch the purple line. If you don't like your character color then press the down arrow to change your character color.
Thank you to @evang99 for the level 2 and 4 idea. Check out his game here ---> https://scratch.mit.edu/projects/939912722
