Conceito interessante, mas o tempo passa muito rápido (seria melhor se não tivesse tempo, ou se o tempo fosse BEM longo. Gostei do jogo, mas como essa mecânica de tempo tão curto não serve para mim. Sucesso, para vocês!

I didn't manage to complete it. Is there a guide?

The Hades campaign has 4 keys, but only 3 of them are required to complete it. I managed to collect all 4 (it wasn't too hard! took about 3 attempts after my first normal hades win), which was fun, but I really expected the game to reward me in some way and yet nothing at all happened. I suggest adding a little something extra, like a reaction from Hades and Zeus, or even just a little achievement!...

How exactly family work in this world?

Game starts in the right resolution for a split second and then zooms waaay in!