ALL you do is use the arrow keys. You want to touch the green little dot and when you do it turns blue. the big red dot is one you do not want to touch. In-fact, it chases you. it will show 4 little red dots when it touches you. it shows you the hits you get, the points you earn and the levels. if the red dot gets you too many times, you lose.
Most of the credit goes to my teacher who taught me coding in the first place. it took me a total of 2 days, but if you have any comments, feel free to say something.