SMG4: Untitled Mario Video is the 38th episode of Season 9 and the 534th overall to be uploaded by SMG4.
This episode was aired on October 12, 2019.
Mario is relaxing by eating spaghetti, a goose came along and took his hat! What will happen?
The video starts off by Tari in her Meta Runner form announcing the new Merchandise on the Meta Runner store after the conclusion of Meta Runner Season 1, with Luke and Kevin later explaining the new Merch.
The actual video starts off with Mario making a spaghetti sandwich and enjoys his time. He gets interrupted by a Goose who wants his spaghetti in his basket and Mario tries to defend it. Mario is successful in defending one plate of spaghetti, but the Goose throws the remaining spaghetti into the lake nearby Peach's Castle. Mario gets angry at the Goose, but the Goose then took his hat and ran off into a dark hole, with Mario in hot pursuit of the Goose, following it into the dark hole. Gooses claims that he will turn Mario back to normal after he aided him on the Goose's journey...
Mario awakens outside of his house only to panic as he realizes in which he had shrunk. The Goose leads Mario to Luigi in his garden and wishes to receive a carrot. Mario approaches to Luigi as he demands to have the carrot, but Luigi would only mistook him for a real goose and unable to communicate to him as he pets him. Humiliated and unsatisfied, Mario bites Luigi's hand, results in wounding Luigi with a rake. Mario proceeds to retrieve the carrot, but Luigi attempts to take the carrot back. This causes a struggle to attempt to take the carrot away for both Mario and Luigi until the Goose assists by wounding Luigi's eye, bringing the opportunity to allow Mario and the Goose to escape.
After their escape, the Goose takes the carrot and throws it at a lake and brings Mario more tasks on his quest. Mario accepts as his tasks only forced more havoc on everyone.
Mario and the Goose arrived to see in which Peach is seen having a yard sale due to the fact she decides to avoid Mario's ungrateful behavior. The Goose orders Mario to complete the final task with having Boopkins fall to a sewer hole. Mario was able to frighten Boopkins, but Peach interferes and kicks him out of her yard sale. The Goose gave Mario an advantage to use the rubber duck to distract Peach, giving Mario time to enter the yard sale. Mario later again frightens and chases Boopkins near the sewer hole. Peach, however, attempts to interfere again, until Mario uses a fire arrow to shoot and burn an oven, having Peach distracted once again. Mario then frightens Boopkins, forcing him to fall in the hole.
Mario, pleased with completing all his tasks during the quest, attempts to follow the Goose to a warp pipe, but Peach, including everyone who protested against Mario as a goose, imprisoned him in a cage and determined what fate is coming to him. Peach suggest she adopts him as a pet while everyone still criticize him by throwing rocks at him. Mario later calls for the Goose as he arrives and lays a nuke to neutralize Peach and the protesters. The Goose takes Mario with him as he explains he was impressed with Mario assisting him on his quest and states if Mario learns his lesson. Mario questions by being crude to everyone, giving the Goose to nervously stated no. The Goose then proceeds to return Mario to normal.
Mario later awakens back to the lake near the castle and goes back to his picnic. Noticing the Goose at the lake, Mario stated his greeting to him. The Goose was later killed by Bob who survived the explosion, succeeding his revenge.
Opening advertistement only
Since this video was released in October, when War of the Fat Italians videos are commonly released, the comments for the blooper were primarily challenge requests for SMG4: War Of The Fat Italians 2019. Two days after, the war's announcement was addressed by Luke and Kevin Lerdwichagul.