This is one of few scenes where real time runs can't get close to the boss. Here I try to get very close to the boss with max Risk Bonus and getting Back Shots. The waiting is done so that the boss moves towards the large swirly ring that expands the most. There's always one swirly ring that does so and I can include some of it's leftovers in the photo.
Later on in the TAS I did find out that taking defensives does change the bullet pattern. Otherwise not doing so makes the RNG for every wave pre-determined, so that way I was able to get good photos more reliably. Doing this could've probably gotten me around 629k if I fixed the first two photos and went for high optimization.
It is worth noting that the large bullets can't be micro'd through even in a TAS, except for the very last two bullets fired. I also demonstrate how using zoom frames can distort patterns. This same oddity exists in StB as well.
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