First of all, I would like to say that I really love what you're doing here. Very few games go so in-depth about content toggles. Endosoma being an option is an instant win from me, and disabling things you don't like is always nice! I will look forward to seeing how your project evolves. Basing it on PackedRat with dialogues from the foes is a very nice touch, too!
The game didn't seem too difficult, but that is to be expected - it's the tutorial area, after all. Everything seemed straightforward and backtracking to save wasn't all that difficult to do, either. Judging by the previous replies, you do not intend to switch away from the one-tap struggle, which is alright, I respect that.
However, I do have to ask, do you plan to let the enemies swallow Graphite before all their health is depleted and they're incapacitated? Having them just hang from a grab with no progression is a little bit of a bummer - but if not, I can probably live with that.
Other than that, you have a nice game on your hands! The platforming is solid, the combat isn't clunky, and goodness does the bunny feel nice to control...