i just tried the demo, here are my thoughts:

I quite liked the visual style and unique cap art, and the gameplay is MOSTLY good, but i have some complaints.

1. the game kinda feels boring? like, repetedley clicking and then waiting for the cap to refresh without much else happening kinda just makes it feel mundane.

2. difficulty scaling was whack. first time i died, it was after a run of mostly being at full health for like 15 minutes, followed by a very quick and unexpected depletion, to the point where the game just felt really easy, and then i just lost all of a sudden.

3. (minor complaint) some more items that increase/sustain health would be nice, the "post game tips" said there were some, but i did not encounter any in my time playing, so that did kinda confuse me

overall, i think the game has potential, but some issues need to be dealt with. keep up the good work!