Hey Norodix, that was some fantastic idea! That would really increase the depth and juice to the game play. I'll consider adding that mechanic if I continue this project later, thanks a lot!
As for the story, I originally planned to have 5 characters in total. The player just happened to control the fox (not wolf :D), but all 5 of this animals are moon spirit that are trying to ascend to the moon. Sadly, there wasn't enough time to make the worlds and cut scenes for all those 4 fox companions, so I just cut them out. They would really add a lot to the story though as I've arranged them to have their own personality and story. Anyway, thank you very much for taking your time to write the feedback. They will be very helpful for my next project!
Here's the character sketch by the way:
From left to right: moon fox, moon deer, moon medium dog, moon small dog, moon lion :D