Thanks a lot for giving the playtest a try and for sharing such honest feedback!
Maybe you were expecting a more typical incremental game? I admit it is a weird mix. I am aiming for a merge puzzle game where the incremental is kind of part the puzzle, that's my point with the game. The content is pretty condensed for the demo, the main mechanic is clearly the merge, but I threw in some minigames to break up the routine a bit. I have more mechanics and minigames planned for the final release, which I hope will better match your expectations.
And sorry about your hand! My intention is not to encourage heavy clicking. Actually, you can beat the demo in a fairly chill way once you get the proper upgrades, but I suppose it needs better balancing or clearer feedback. For instance, in the clicker fights, spam-clicking doesn't make you go faster. You can play at a steady rhythm, and I added some cues to help players discover that. However, it looks like it is not clear enough since most players end up spamming anyway, though I am not sure if that is what happened in your case.
Thanks again! :)