I enjoyed Aztaka. The graphics, music, and setting were all quite good.
Overall, the game play was good, too, so long as you don't use your spear to attack anything. Attacking with your spear is slow, clunky, and nearly pointless once you get the air attack. Because of how worthless the spear attack is, two skills were also useless and I never once used them in the game after trying them out the moment I got them. They are just too slow and too difficult to even activate, let alone use effectively if they did decent damage or didn't leave you completely vulnerable.
Jumping was surprisingly responsive and is the most effective means of attack in the game later on in most situations, even trumping magic for most enemies.
The magic system was unique and I rather enjoyed the difficulty it added. However, you will not want to use two of the spells too often later in the game, as they have a tendency to crash the game at random.
Stability is a severe issue in Aztaka. It crashed regularly for me, sometimes when doing nothing but walking along, but usually when trying to use the two attack spells you don't start with. It will just freeze for a few seconds, then go to Not Responding(in windows 7) and finally just give up and die. Save often.
It is somewhat short, but I enjoyed it and am not sorry to have bought and played it.