I REALLY regret sellin this one!
While the default battle system is really...I mean REALLY annoying, you can actually code your own, with enough knowledge of the system and variables.
You can customize the characters to a certain degree, adding different colors to them. I am not so sure regarding actions though...hmm...
You may be bugged by the difficulty but, once you get into it, its really fun!
Let your imagination run wild! Do whatever you want and just have fun with it! Don't sell it because you didnt understand it...like I did...X__X