Alternative way to get a Rainbow V on Stage 4

Unlike Bayo and W101, any ranked fight in VJ that you did not complete will not count towards your final rank. With that said, you can skip straight to the boss fight on Stage 4 and still finish the level with a Rainbow V. You do not need Captain Blue's hover ability to get through the missiles part. So long as you jump high enough to where the missiles won't clip you, you can keep yourself suspended in the air by punching and kicking.