I’ve been wondering about this one for a while but I think the comet chase levels would benefit greatly if they were to have the same mechanic like the one from meteor storm type missions, where the closer you are to meteors, the more points, which is represented in stars on that specific meteor.
The reason I think this would be a good idea is that since comets always start from the bottom side of the screen, most of the times you have to dodge them and since they move so fast there are times when you can’t hit them unless you have an instant weapon like plasma rifle.