itch.io

I think they mean specifically how to view the scene for Chara that you buy from Nebby. It's never specified how to view that scene outside of the gallery, if you even can, and the Round 2's can only be viewed after you get them through battle as far as we know. If there's an alternate way to unlock them/this one specifically, that's what they're asking for

To add onto this: I personally think that the no-hit achievement should be eased up a bit, seeing as a lot of the attacks are very RNG dependent and can be damn near impossible if not outright undoable depending on what controls you're using, maybe allowing up to 3 hits or disallowing healing items would work better to make the scene still a challenge to get but not unbearable.
Edit: Either one of those solutions or tweaking the attacks in general to all be purely devoid of random chance would work, it just depends on which part you'd prefer to keep I guess.

I experienced this as well, but specifically after the second encounter. I can get the water just fine if its the first time I'm approaching it, but if it's the second time, the  game crashes when I try to choose ACT. On top of that, the cooler seems to reset after ruining it, I think after you go to sleep that day?

How? People on the internet can be a bit dumb sometimes, but there's no way someone would unironically believe that someone could steal a concept that didn't exist.