Good tutorial. Very intuitive and satisfying.
Arcade mode is a good add. I took some times learning all the items + upgrades. At some point I got bored because there was no time constraint or anything that kept me in.
A thing I didn't know is if the items were permanent, and that I could sell them. But I discovered it by clicking around.
Using mobile controls wixth a trackpad (like said in description) is good. I think you should make it like this for trackpad, but also allowing to cut with a keyboard key, and make the cutting trigger zone closer to the roll, because on a trackpad you are more precise than on mobile. Very intuitive controls.
For art, you did a good job. I'd say to move the Pause button and the "place for next paper roll" so Pause button isn't on top of "place for next paper roll". I think you can improve the toilet roll animation at it's a core part of the game.
I wasn't confused by any UI. I really liked how looked the combo system.
Nice music. It turns out to be an interesting idea. I look forward to what you will do in next updates !