I like how the theme is integrated in both the boss battle and the player controls. But as other people said, they're pretty hard to get used to. The amount of smoothing on the wrench makes it very hard to control propely, and im probably just dumb but I'm not 100% sure how the whole right-clicking thing works. If you're just using right-click for everything, what's the point of using the wrench? I also found the camera to be zoomed in way too much, making it very hard to dodge a lot of the RNG attacks, especially with the water. I would probably just have the camera in a fixed position that shows the entire stage instead of being zoomed in on the player.
But I really enjoy the theming, art style, and character designs. Well done in that aspect!