Ash's Adventures of Bigger Fatter Liar is an upcoming sequel to Ash's Adventures of Big Fat Liar planned to be made by Shadow101815. It will appear on Google Drive as part of a double feature with its predecessor Ash's Adventures of Big Fat Liar in the near future.
Ash Ketchum, Scooby-Doo, Remy the Rat, Hiccup, Tino Tonitini, Mario, and their friends meet Kevin Shepard, a tech-savvy young genius who uses his intelligence to slack off. When greedy video game executive Larry Wolf, whom The Crime Empire, Percival C. McLeach, and Captain Gutt and his crew work for, gets a hold of his ideas for a video game, Kevin and his best friend Becca set off for San Francisco to make Wolf's life miserable through a series of pranks.
- Delia Ketchum, Professor Oak, Scooby-Doo, Shaggy Rogers, Fred Jones, Daphne Blake, Velma Dinkley, Scrappy-Doo, Remy the Rat, Emile, Hiccup, Toothless, Astrid, Stormfly, Fishlegs, Meatlug, Snotlout, Hookfang, Ruffnut and Tuffnut, Barf and Belch, Gobber the Belch, Tino Tonitini, Lor McQuarrie, Carver René Descartes, Tish Katsufrakis, Mario, Luigi, Yoshi, Princess Peach, Toad, The Crime Empire (excluding Poison Ivy), Percival C. McLeach, Captain Gutt, Flynn, Squint, Raz, Silas, Gupta, and Dobson will guest star in this film.
- Like the Bigger Fatter Liar segment featured in Pooh's Adventures of Scooby-Doo and the Ghoul School (in which most of that film's guest villains will work for Larry Wolf), The Crime Empire, Percival C. McLeach, Captain Gutt, Flynn, Squint, Raz, Silas, Gupta, and Dobson will work for Larry Wolf in this film.
- Like in Pooh's Adventures of Scooby-Doo and the Ghoul School (which features Bigger Fatter Liar as a segment), the only changes to the segment are that the words "h***", "smart a**", "turd", "crap", and "You suck!" will be replaced with the words "heck", "butthead", "dirt", "crud", and "You stink!", the brief use of God's name in vein will be replaced with the word "gosh", and some violent images, some rude behavior, brief alcohol drinking bits, brief bits showing shaped buttocks, some disturbing details, and other content will be censored to keep the film more G-rated, due to the Pokemon franchise being made for children.
- The main reason why Scooby-Doo and the gang's real counterparts and Scrappy-Doo are guest starring in this film is because they will be absent in the Bigger Fatter Liar segment featured in Pooh's Adventures of Scooby-Doo and the Ghoul School.