Use the arrow keys to move. You have 30 seconds to score as many points as possible. Each blue stud is worth 1 point, each red stud loses 1 point. The green stud gives an additional point and a speed boost. The purple lines give speed reduction. Touching purple lines and red studs make you lose time. Walls move from time to time. The finish line will appear after 15 seconds. Reach it to claim all your points. A x2 score multiplier will appear after 10 seconds so you can use this opportunity to get more points. Have fun and good luck!
This is the finished project from the tutorial from the Scratch Coding Class on Youtube. Full tutorial here: https://youtu.be/bvrYfdW3FaM