I'd love to share a few tips about your play: 1 coins shot from coin revolver are moving to the same side that you are moving. So if you throw coins standing still, OR constantly moving in one direction with same speed, they will go through your aim, and you can don't move your mouse until you shoot coin 2 try shooting with your red revolver in the ceiling, this way bullet will bounce off ceiling and floor a few times piercing through enemy. 3(this one might be useless, cuz I saw you did it a few times) jump and dash at the same time it will give you additional speed.(sorry if the last one was useless)

It's a good start. Learn to control speed and hit coins a higher chance of the time and you'll be able to play regular. or even better P-rank!