What is very noticeable playing through Origins is the depth of the story conveyed through the games. Sonic 1 probably has the least object plot development, but then again it was also setting the entire foundation of the series - so arguably it has the most depth. But with Sonic 4, I actually have no idea what the story was... It appeared to be a literal repeat of exactly what has already occurred. I don't think Sonic 4 deserves to be part of the lineage in the way the Origins collection does. It's not bringing anything to the table - it's literally nostalgia pandering based on the previous entries. Conversely, for all the nostalgia reliance of Mania, it DID have a story arch that was identifiable, it did have unique settings. Sonic 4 will always be emblematic of the feckless anti-consumerism in Sega, it ought to be thrown into the dustbin of history.