Thanks for the feedback! Yeah the UI is very blurry, there´s an update in the way that fixes this. Regarding the special, it also heals one heart so you have to decide if you want to save it for when you´re low on health...Maybe I´ll upgrade it to healing all hearts so the decission has more weight.
Gameplay is simple, it´s all I could do in 3 days. But I´m already working on adding something more, stay tuned!
Thanks again for your comments!