NoirSon on 25 October 2017
Nintendo seems to work under the idea that certain creators have control over certain characters, franchises and such.
Metroid Prime is considered by Nintendo to be a sub franchise of the main Metroid one, which focuses on the side scrolling exploration. A new Prime game can be called any thing but calling it Metroid Prime 4 makes it clear this is meant to be part of the main and more or less beloved Metriod Prime lineage that everyone constantly asks about since Other M dropped the ball so spectacularly.
