FYI FWMC has a fairly long telegraph before they swap because Fuwawa stops attacking for like 5 seconds before it happens. In fact every single boss should be pretty reasonable to do hitless besides Shiori, maybe I’ll make a vid at some point. Also there should be like 5-10hp worth of pots around the map.
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It's not a telegraph to stop attacking for a long period of time, especially if she's not in view at the time because of trying to get away from her shots. Also when I said "nearby" I didn't mean in the same map. I meant close enough to not risk too much damage trying to get to it (both from the boss shots and from the otomos). More importantly, though, I can't take the claim that the bosses are "reasonable" to do without taking damage seriously when the first boss has exploding otomos in pots in a room that it constantly covers with enemies and the third boss has the randomly targeting jetpack enemies that the other commenters have also complained about.
Here you go. Every single boss hitless through and including FWMC, in 16 min. Would have done Nerissa and Biboo too but my changes to reset the boss HP after each death broke with FWMC's shared HP bar so she kept respawning, and I figured since that's as far as you got this proves my point. I'll make a proper "Radiant" difficulty for the game and beat it with the 1.0 Patch I'm planning to drop after the jam ends but yeah. Every single boss attack is not only dodgeable, it's not even that hard considering this includes my practice runs.
This honestly feels like it designed to feel amazing. There are just so many moments that randomly reward the player with no recourse. This does make the time travel more likely to come up, but I love time travel so it still means that most of the game is awesome to play. The point I liked the most was Fuwamoco, just cause I had a lot of interest in fighting a boss that is so incredibly telegraphed (when swapping) multiple times with no likelihood of getting confusing to play around at all.
Also, I love that the player being familiar with other stories involving time travel does not take away from the experience. Nearly all the stories I've seen about time travel have similar mechanics but most of them establish paradoxes diffirently. Furthermore, I love Rick Sanchez and therefore have high IQ. I can absolutely imagine Cecilia purposely putting herself in that situation because I actually watch hololive from time to time. I also watched The Prestige (the one adapted as a Christopher Nolan film) but not the actual time travel Nolan movie Tenet cause I hate time travel.