Littlefoot's Adventures of Happy Days is another upcoming Land Before Time crossover TV series planned to be made by Shadow101815. It serves as a sequel to the pilot short Littlefoot's Adventures of Love and the Happy Days. It will appear on Google Drive in the near future.
Set in the Midwestern city of Milwaukee, Wisconsin, the series revolves around Littlefoot and his friends reuniting with teenager Richie Cunningham (Ron Howard) and his family: his father, Howard (Tom Bosley), who owns a hardware store; traditional homemaker mother Marion (Marion Ross); younger sister Joanie (Erin Moran); and high school dropout, biker and suave ladies' man Arthur "Fonzie"/"The Fonz" Fonzarelli (Henry Winkler), who would eventually become the Cunninghams' upstairs tenant. The earlier episodes revolve around Richie and his friends, Warren "Potsie" Weber (Anson Williams) and Ralph Malph (Donny Most), with Fonzarelli as a secondary character. As the series progressed, Fonzarelli proved to be a favorite with viewers and soon more story lines were written to reflect his growing popularity. Fonzie befriends Richie and the Cunningham family, and when Richie (Ron Howard) left the series for military service, Winkler's Fonzie became the central figure of the show. In later seasons, other characters were introduced including Fonzie's young cousin, Charles "Chachi" Arcola (Scott Baio), who became a love interest for Joanie Cunningham.
- Stan Marsh, Kyle Broflovski, Eric Cartman, Kenny McCormick, Harry Potter, Ron Weasley, Hermione Granger, Rafiki, Olaf, Bloom, Stella, Musa, Tecna, Flora, Layla, Alex, Marty, Melman, Gloria, Zuba, Florrie, The Penguins of Madagascar (Skipper, Kolwalski, Rico, and Private), King Julien, Maurice, Mort, Marlene, Taran, Princess Eilonwy, Fflewddur Fflam, Gurgi, Terk, Tantor, Jack Skellington, Scooby-Doo, Shaggy Rogers, Fred Jones, Daphne Blake, Velma Dinkley, Ali, Bron, Shorty, Hyp, Mutt, Nod, Kronk, the Mighty Morphin Power Rangers, Zhane, Mickey Mouse, Pluto, Sora, Donald Duck, Goofy, Olie Polie. Billy Bevel, Austin Moon, Ally Dawson, Trish De La Rosa, Dez Wade, Caitlyn Gellar, Lela, Tanner, Liv Rooney, Maddie Rooney, Archimedes, Bugs Bunny, Daffy Duck, Princess Odette, Prince Derek, Jean-Bob, Speed, Puffin, Rex, Woog, Elsa, Dweeb, Sebastian, King Louie, Fu Dog, Rutt and Tuke, Roger Rabbit, Woody Woodpecker, Mulan, and Mushu guest star in every episode of this TV series.
- Yru17 originally planned to re-edit this TV series, but he retired from re-editing anymore crossovers, so Shadow101815 will make this TV series instead.
- This TV series will be dedicated to the memory of Erin Moran, who played Joanie Cunningham on the real show and died of throat cancer on April 22, 2017.