I hope they make an alternative ending.
nothing was good about the ending.
first of all from a gamer's point of view it was so bad they could manage to open the door without they keys and also kill the dragon because the game was "glitching"
in general point of view the fact that they were actually humans in end and not keep it as cartoon (even with same ending) for me really ruined it. even if we overtake this, my humble opinion is that the acting was terrible
I would give over 8 but because of the end, 6 is enough I would say