I've brought up the Darkness War multiple times, and now it is time to talk about it. The Darkness War was an event that happened a long time ago in the CosmationStudios timeline. It consisted of the two main species that dominated the planet, named Cosmation. The two main species were Kimlans, spherical creatures that like to eat rocks. Billy the Guy was a Kimlan but died a few billion years before the Darkness War. Then there were humans, but not your average one, these humans had almost stick-like limbs and see through hands. Now that you know what the two main species are, we can talk about how the Darkness War happened. The Kimlans named the planet Cosmation. Humans didn't agree with this. A few years later, Billy died. The Kimlans thought the humans did this for revenge. So they went to war. Now, you may be wondering why it is called the Darkness War. It is because every time a soldier dies, hatred and dread would build up. All of that hatred and dread manifested into a being called the Darkness. The Darkness killed everything in their path. Forcing both species to come up with a plan to eradicate the Darkness. And that is for Timeline Entry #2, which is the creation of the Entosphere. So you might have to wait awhile. See you soon.
Nintendo Lore in CosmationStudios? That is crazy!! The Darkness War has some responsibility during the Non-Canonical Darkness arc, which is an alternate timeline to the main one.