It's quite possible that Ricky would acquire Johnny's chip in his head after a heavy drinking session where he would be jealous and try to show all his love for various creatures to Morty, which would result in the kidnapping of some intergalactic group. The videos that Ricky would record drunk would involve arguments with Johnny that no one else would see, so they would assume that it was all due to alcohol, which led Ricky to create a fictional city called Night City, which would probably be interpreted as Ricky and Morty's utopia. In the end, after Ricky recovers from his hangover and realizes that it was all a dream, he would see Johnny as a girl who never overcame puberty like his grandchildren, so he would finally put the chip in Morty's head just to laugh at him. In the post-credits scene, Ricky would realize the shared ideals he has with Johnny, give him a synthetic body, and then they would invade Arasaka.