I really enjoyed the game. At first it seemed a little hard to control myself like I moved too fast or something, but I later got used to it. I really enjoyed the last level when things got more difficult, so I think adding more difficult levels would be great, and if they are too difficult it wouldn't hurt anyone if they were like optional.
Enderbane. BrokenBulb is not really updating the game anymore. And it is impossible to get all the achievments since the emerald collector one is broke. I also doubt many people would want to buy 200 karma with real money.
@KaBaMsLaM they might might seem "hefty" at lower levels where you don't have that much gold, but at higher levels you have much more gold than you need to afford it.