Hey, thanks for the comment! Yeah, thats a strange issue with clicking. Potentially could be because of the export to browser. For reward in battle I would say it should be as additional risk-reward based option to earn more points and it should bring more sense (and points) on higher difficulties or later in the game. On early stages yes, its faster to earn those points on its own but with fight its almost double or nothing game.
Cosmetics & duplicates were a last hour implementation for the jam so that wasn't the original plan 😅 Normally yes, I would want to have a shop and from fights you have a small chance of getting new cactus specie and thus have multiple parallel idling cactuses as one of the game mechanics.