Morty uses Rick's advanced weaponry to go on a rampage, eventually transforming into a giant, sentient ferrofluid monster—a direct homage to the anime Akira . Subplot: Rick's Multi-Dimensional Rebirth
Rick repeatedly awakens in worlds ruled by fascists (including "Fascist Shrimp" and "Fascist Teddy Bear" universes) and is killed each time he fails to comply with their ideology. Rick and Morty Season 4 Episode 01 (S04E01)
Rick takes Morty to Forbodulon Prime to harvest these crystals. While there, Morty discovers a vision of himself dying peacefully as an old man, comforted by his crush, Jessica. Obsessed with reaching this specific outcome, Morty begins following the crystal's prompts blindly. Morty uses Rick's advanced weaponry to go on
He finally lands in a "wholesome" Wasp dimension that isn't fascist. The Wasp Rick helps him return to his home reality to deal with Morty. While there, Morty discovers a vision of himself