Really good game
Most fun flash game I've ever played.
However, even though the introduction of new baddies on each level was good, it would've been nicer if the monsters could be elemental, and be part of the trees, like cold baddies that are weak against fire, resistant towards holy attacks, "holy" baddies that are resistant to fire and weak against ice etc.
If the baddies could have better spells, like cold baddies that can slow you, and extra strong cold baddies that can freeze (real challenge), fire baddies that can burn you and you will stay burning for a few seconds, holy baddies that weaken you, throw off your aim maybe? That would be real awesome, and you will have to prioritize which projectiles are more important to dodge.
It would also be nice if you could change your appearance according to the stats you added to. Also, if there could be a undo last skill point feature, I accidentally add to wrong skills quite often, and its quite frustrating to have to restart the game to get a perfect build.
Also liked the idea of having a sacrifice spell to increase mp at the cost of hp, so more strategy can be involved in mp management. And the idea of mid-game bosses.
Overall, awesome game!