This was fun, and the pufferfish is really cute! The game oozes character with the comic, shop, and the UI.
I didn’t feel like the secondary attack (right click) was worth it imo, I could left click fast enough that the DPS was always higher than if I used right click. So I think the damage could be improved or have some other utility, like knockback, to make it worth spending the scales on it.
I think also you might get more reviews on your game if you used a frame from your comic as your thumbnail, your current one hid the fact that there’s a great looking game under it.
Good Job!