Game Bababa is

It's a dark fantasy, right? So I was wondering if the ending would be a bad ending or a happy ending. I thought about it my own way and came up with a happy ending and a bad ending. I personally think a happy ending is better. Before, Bjorn went to the Dreamy Lake outside the city walls and met Elice Groundia (the Witch of the Earth). The witch sent Bjorn back to Earth, right? But Bjorn refused and returned to Rapdonia. After opening the Gate of the Abyss, he went mad, killed everyone, and ended up in a mental hospital or prison. That's the bad ending I imagined. For the happy ending, Yandel and his companions open the Gate of the Abyss, and they return to Earth with their native companions. I don't know Auril's intentions, so let's not think about that. They arrive and the companions say: "Mr. Yandel, you said it was impossible for ordinary people to view the principles of the steam engine back then!" "Why bring up old stuff, Raven! That's why you're not growing taller!" "No, this is about height... sigh..." "Bjorn is a great warrior!" Is this a happy ending?