Glad you like the game!
When you say it "stops you from playing" are you referring to the stun mechanic after losing 3 HP? If that's the case, I'd suggest you take a look at the tutorial (accessible from the Main Menu) where we explain how to recover easily.
If you are referring to a crash, we would like to hear from it so we can fix it.
- Guillem Blanch, programmer for KeyRivals