Does anyone play Stick Arena

Yes, lots of people! Its a funfilled game! According to the Xgen Studios website, there have been 79 million plays for the new version of Stick Arena (Stick Arena Ballistick) from its release date (11/4/2008) up to today (1/11/2011).
And about the hackers, I believe that the hacking issue has been reduced. Although there is still some hacking, you should be able to still get quite a bit of uninterrupted gameplay.