The best thing about this is that it is only one sprite. Just drag it into your backpack & transfer it to the map. :D And since it only has one "green flag clicked" block it should be easy to modify. Put a script (in the top-most part of the block) that says "wait until <Part! = 4>".
This project is for ScratchyJr_101 on her map called "All We Know" ----------------------------------------------------------------------------------------------- I did my part already. Feel free to join the animating group. ----------------------------------------------------------------------------------------------- - https://scratch.mit.edu/projects/184197754/