Automatic casting seems to be hard to manage. It is hard to get it to start after the power up is paid for, and it is hard to manage which spell is being cast. I am running chrome on Ubuntu, so it could be me.
Very fun game, until unplayable, also the forest needs some color tweaks. Optimize your code. seriously. The amount of lag is unprecedented, on kong, which makes it a reasonable conclusion that your code, not my computer is the problem.
The only real issue, I have with this game at this point is the games awards and stats get lost every know and again, but I think that is some kind of problem with Google Chrome, Flash and how stuff is being stored locally.