Debug it

In order to debug I didn't have a specific strategy. Basically what we did was use the knowledge about scratch that we already had and solve the problems. For example when one of the sprites wasn't dancing but the other was, I knew that you could click on the different sprites to see their movements so that is what I did. I would recommend to someone else learning how to debug a project that you watch the videos before so you know how to use scratch and then that knowledge will help you to debug.