Intressting needs some polish, and yeah a speed system that makes you faster and harder but also boost points would be good so you have to ballance speed with your skill, and more intresting wheels are a must, IE one that auto succeeds one you failed once per round, and one that lets you draw 2 more but need to place a extra card, and a penalti for failing cards might also abe a good idea, as well as bonus trick QTS on cards you can try and do for extra points.