I've been trying Popochiu for a few days. It seems really well-made, but the YouTube videos are out of date. There's no way to figure out how to create extra animations for the characters. The tutorials only show one sprite, but if I have a lot of animations, what do I do? If you follow the online tutorials, the player doesn't show up or doesn't work properly.
It's a real shame that it's well-updated, but there aren't any videos that explain the program properly.