For this submission you only needed to submit the unmodified version. That said, you are on track to have an excellent project! As this project is now, I would consider 2 out of 3 additions complete (original music counts and your visual mods, though small, come together to count as one). I cannot seem to access additional levels, so make sure I can and you will have a good project. Aim to have one of the best 2d shooters in this class!