The web series is in its third generation, with episodes running up to five minutes long. The first three volumes, each containing eight episodes, were co-produced by Nickelodeon and animated in 2D. They are tied into the continuity of the first season of the TV series. Following the cancellation of the TV series in September 2024, all of the webisodes co-produced by Nickelodeon were set to private. The new animated media for this generation is exclusively on YouTube and produced by MindShow, which has been animating the franchise's music videos since 2022.
Monster High Mysteries
On November 18, 2022, the official Monster High YouTube channel released the first episode of Monster High Mysteries. The series contained eight episodes, each 4–5 minutes long. The first four webisodes were released in 2022, followed by a one-month hiatus. They later returned in early 2023, with the fifth episode posted on January 13, 2023. Additionally, this miniseries relied on continuity, with each webisode occurring from the perspective of one of the characters in a video game–like, interactive, multiple-choice story format. In this volume, the Boo Crew tries to find out who is terrorizing the scare rally.
Sparks & Spells
On May 5, 2023, the official Monster High YouTube channel released the first episode of Sparks and Spells: A Monster High Musical. The series contained eight episodes, each 3–5 minutes long. Once again, the episodes relied on continuity. Unlike Monster High Mysteries, the animation quality was slightly improved with more varied movement in the 2D puppet-animated character models. The series focuses on one night when the Boo Crew comes together for a talent show. Each episode features one or more ghouls performing a song, building up to the final showstopper in the last episode. A narrator (voiced by Merk Nguyen) speaks at the beginning and end of every episode, providing context on the events of the episode. The first, fourth, and eighth webisodes reuse songs featured in Monster High: The Movie, "Spark", "Here I Am" and "We Are Monster High", respectively. The rest of the webisodes contain original songs.
Monster Ball Homecoming
On October 27, 2023, the official Monster High YouTube channel released the first episode of Monster Ball Homecoming. The episodes are exactly 5 minutes long and, once again, feature continuity between episodes. Similar to Monster High Mysteries, the Boo Crew tries to discover who is sabotaging the Monster Ball. However, the animation resembles Sparks and Spells more than a video game, completely abandoning that style of storytelling.
It is currently unclear whether this volume takes place during the Monster Ball arc of the TV series, specifically in the season one finale, "The Monster Way." Both the webisodes and the TV series feature the Boo Crew attending the Monster Ball, and the characters wear similar attire. It can be assumed that the webisodes take place shortly after the Boo Crew free Selena from Beheme. However, the night of the dance occurs during a different set of events. One minor inconsistency is referring to the dance as the "Monster Ball Homecoming" instead of the "Monster Ball." Major inconsistencies include Bloodgood suddenly having her own Monster Ball attire and Clawd indirectly causing the mystery to begin due to a mishap in the science lab before the dance. This caused him to be absent at the start of the ball, though he was not missing in the TV series. This follows a trend from the first-generation webisodes, in which the continuity of Volume 1 was rewritten in the TV specials.
Draculaura's Scary Sweet Birthday
On August 30, 2025, the official Monster High YouTube channel released the first episode of Draculaura's Scary Sweet Birthday, a promotional series for the franchise's Scary Sweet Birthday doll line and Boo-tique Hotel playset. The episodes are exactly 5 minutes long and, once again, feature continuity between episodes. As evidenced by a January 24, 2025 casting call, the entire voice cast from the previous animated media was almost entirely replaced. This was likely due to contractual restrictions from the Nickelodeon partnership. Similar reasons explain why the TV series' soundtracks feature songs re-recorded by professional singers.
MindShow, the studio responsible for producing 3D animated music videos for promotional songs since the beginning of third generation, produced the series. This distinguishes this volume from the previous three, which were animated using 2D rigging, while these webisodes utilize the same 3D animation as the music videos.