Fair question , the thing at the start of the loop is supposed to be an explosion, you need to exit it into the black area, I guess it's a bit of a stretch.

The replicas are effectively a 2D array of circles, where one dimension is time and the other is space, the code is in the download, I think you should be able to look at it no problem but if its not possible I will make a repo if you would like.
Also, I added a song now, seeing this comment reminded me to write one.