Click the green flag to test. To change what is shown on credits all you have to do is adjust the costumes. Add another costume if you want to. Modify the costumes to whatever you want. I'm not good at art but you can customize to look amazing. If you did not want this please let me know in my main account profile (@mr_scientific) or in the shop (https://scratch.mit.edu/discuss/topic/288903/ link). To stop credits all you have to do is change the stop credits variable to 1 and the script should stop on its own