Wait, SoEW is getting activity for once? I guess I'll submit a run of my own too.
Easy - ReimuB
Karisa - 19,321,840 - C - AutofireOn -
VideoWell, the top Easy score is higher than the top Hard score now. (I suppose someone will fix that eventually?)
Still some room for improvement-- I think 20m will be possible.
Notable losses include 3 deaths to stage 4 (which reset the power item chaining-- this is why it's better to wait until Mima's final phase after the last non-death power item). It's also possible there's a better stage portion strategy for stage 4, e.g. waiting for the enemies that start lower on the left/right to circle higher for a chance at 51200s there.
Also I need to figure out how to manage Marisa's health enough to defeat her between the 7th set of orbs and the self-destruct (which as far as I can tell happens when the 8th set would spawn), since it's worth 200,000 extra points. If I keep shooting that normally happens between the 3rd and 4th sets of orbs. I think she might be invincible whenever she has orbs, actually-- I tried out constant shooting when the orbs are out, even during the go-inside-the-orbs attacks, and she never died mid- orb phase.
The orbs are worth 50,000 each (so 200,000 per set), though, so it's definitely worth "timing out" over not destroying all 7 sets.
Edit:
By the way, if I calculated correctly, a death costs about 400,000 from lost power minus any lucky high-value point items spawned (assuming you collect enough power items to reach 12800 again after the death), plus another 1000*[# of point items collected in the stage] from the clear bonus (in practice, about 40k in stage 3, 60k in stage 4). This does not include losses from any point items that drop during the death, or from having fewer lives to suicide away at the end.
In other words, not dying is pretty relevant, at least on lower difficulties. It's possible a bomb-for-items strategy might be more profitable with all of Lunatic's revenge bullets flying around though.
This means 20m might be doable with my current strategies simply by not dying.
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On a different note,
adding autofire labeling to SoEW too. Please indicate whether or not you use it from now on (as well as for past runs if possible).