The mechanic you mentioned is what I was trying to implement - sadly when I did all the levels it was too much work to do and I was afraid that when the gamejam will end I won't complete this for the rest of the maps. I wanted to create some kind of cooldown on the rolling: it will give you some effect for 3 seconds and then you can roll again. As I mentioned before I was running out of time and I was really scared that I will mess things up. Thanks for playing the game!