For the additional mechanics, having a simple game that can be played with just one joystick is something that pleased us, especially when making a 3 minutes games for a jam.
You're right about readability, it 's something that we should be looking for in the future
About the mouse spinning, it's something that was pretty hard to implements. Using the general movement was something I thought of, but in order to know when we are making circles you have to make circle around a specific centre point. To make it work in the allocated time we chose to use the dog as our centre point.
Thank you so much for your comment !