弹幕异夜剧 - Beginning of Another Phantasm (Lunatic) - NMNBNCFS - Sanae
This stage is weird. The stage section is completely trivial if you're not named Sanae (who can't kill anything without shotgun strats), midboss Junko is actually easy (!!!!!!!!) and Chang'e loves to cause lagspikes at literally the most inopportune times. But overall it's fairly simple.
I was actually constantly switching between Reimu, Marisa and Sanae, all of which have their pros and cons for this stage. Although Sanae completely sucks at the stage section, she makes up for it with her focused options that make some of Chang'e's spells end faster (1st, 4th and 5th spells) and she has an easier time on the last non. More on the differences when we get to the relevant attacks.
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The description is too long so into the comments it goes.
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Also, challenges. There's only one this time.
18) Capture Chang'e's 8th and 10th spells.