BROS - Mugetsu, it is not possible without huge luck

This is the last battle in 3* Mission mode, with final scores for all characters in the last 5-10 seconds of the video. For Mugetsu, you just need a ton of luck because you need to make 3 kikon moves for 5 battles, like 15 kikon just because, and if you get a bad AI, your time just vanishes.