A good tip for anyone who keeps on missing their attacks: if you go into the pause menu, you can click on 'Restart Turn' if you mess up. It doesn't undo enemy attacks, though.
What would make this game better is if there is a custom character thing added to the game like the papa's -ia games. When you unlock each character with a different weapon/ability you unlock an option to change your character's weapon after each level.
Maybe an easy one for a few endings if the rating is good enough.