OK, now that I've found the time to watch the run-- I find it interesting that the TAS uses ReimuB. Seemed like an odd choice at first to use the weak spread shot (though notably LLS Marisa isn't any faster), but it seems ReimuB is powerful at close range, with TAS dodging and LLS's lack of boss contact hitboxes.
Also this demo gives 3 bombs per life compared with the full version's 2 (no free bomb at the end of each stage though). Interesting how TAS grazing seems to be worth more than bombing the latter half of stage 2, despite that. (Or maybe it's not worth more, and the TAS was avoiding points by then to avoid passing 99,999,990.)
I see the LLS demo doesn't properly display an 8th digit on stage clear bonuses, which I guess was fixed. I wonder why the stage graze cap was added, though... scoring would've been more interesting without it (particularly in Extra).
I'd like to see a full-game TAS, anyway. Not sure if Metamorphose will bother, considering the graze cap, but there's still manipulating point items to appear near the top of the screen (when not bombed) like in the SoEW TAS, and maximizing bullet cancel bonuses...