This game looks promising, but I feel I'm missing something or my game got bugged.
Is the game supposed to end after defeating the tree boss? It was over in under 15 minutes and not much of a story was told. I just got a black screen at the end.
I liked the active battle system, which makes fights more engaging. However, the camera moves too much during the battle, which made it hard to aim at an enemy when trying to attack. It also got very annoying after the third fight.
I would also suggest improving the HP and MP bars on the battle UI, since the way they are animated now, it's hard to see how full they are at a quick glance.
If this was a traditional turn based RPG, I would let it slide, since I would have all the time in the world to check my stats and plan my moves, but the active battle system means that the enemy won't wait for me and keep attacking while I'm reading, so every second counts.
I also got 2 enemies get bugged in the screen right before the boss fight. They would run up to me but not trigger a battle. Instead they would follow me around the map, which was quite funny.
Good job on the game!
I hope you can improve it and expand its story in future updates!