Good, but rather glitchy
I killed the end boss and the game locked up. There was a black bar over the skill bar, the boss simply disappeared, and the game just... stopped. Additionally, a previous reload from save had re-hid the last 2 columns of the map, and restored a previous killed death gate. Last but not least, one time I tried to move something inventory, my inventory got locked open because the game thought I was moving an item when I wasn't. There was no way to fix this other than refreshing the page (and losing all progress since last save.)
All in all, not bad for a quick little flash RPG. The skill tress actually complement each other pretty well, and it allows a few different builds. A bit more variety in enemies would be good however, and again, this game needs a debugging... badly.