I loved this, the concept is absolutely amazing, I like the art too!! Sadly I am terrible and I could just about get to 268 lol, one thing I can suggest is to make the bullets of the two players different but that is to only make it easier, you may very well like it to be harder. Keep up the good work :)
https://mazzs-games.itch.io/all-for-one Here is an entry to which I contributed through the artistic side, I hope you can find the the time in your day to give it a review! Have a good day! :))