That is a very fun game! I really like how when I die, the game tells me that maybe my children can do what i couldn't and then loops me right back to the story about my father's death. It's a clever idea AND works really well with the theme!
As someone mentioned below, I do agree that aiming with the sword is pretty tough as for the moment. In addition, it feels like shooting enemies have quite a bit of HP, so on earlier stages it can take a while before I take them out, especially when there are many of them. I also don't think I entirely understand the growth circles, or, at least, why I would want to grow them
But overall, I think it's a pretty good entry and a nice, polished game. Great job!