Thanks so much for the feedback! We're so glad it seemed easy to pick up!
We do have "R" as a "reset" button, but we only listed the controls in the description and not actually in the game itself, so that's great to know that was a problem for people. We would have liked to add a controls screen in the game and didn't get a chance to do so, so it's really good to have someone point out that listing the controls should be a priority to add when we work on this project again. Thanks again so much for taking the time to play our game!