This run can actually crash your game! xD
So it's Saaaad that I couldn't dodge two measly attacks to get a perfect on him... but this build is funny because I actually crashed my game earlier with it; the missles and swords don't just go infinitly, they keep multiplying the longer and longer they trigger. I decided to grab a drink while one of the zodiacs was saying their defeat speach, which doesn't fully freeze the game, and more and more swords and missiles kept spilling from me and hitting them. Only took the PC about 12 seconds of this to chug and break!
Anyhoo, I actually only just got the Bigger body initiative from killing Gemini before this. Otherwise I think this is the most powerful non-astral combo in the game for sure.