in the 2020 video game Assassin's Creed Valhalla, where he engages the player in flyting, a poetic duel, in the mythical realm of Jötunheimr. In the comic book series The Unbeatable Squirrel Girl, Ratatoskr is featured as a villainous female squirrel god from Asgard who wants to destroy all of humanity. She was defeated by Squirrel Girl after she teamed up with Thor and Loki. However, she later teamed up with Squirrel Girl to fight the Frost Giants. Ratatoskr appears in the trading card game Magic: The Gathering as 'Toski, Bearer of Secrets'; a homage to the mythical creature. The card’s effects connote Toski's tenacity to exchange information between the many realms of Kaldheim. Ratatoskr can be cast as the spell "Ratatoskr's Spin," as of 2019, in the video game Wizard101, where he climbs down the world tree, digging up a giant acorn and damaging all enemies with it. Ratatosk appears in the novel Hellboy: The Bones of Giants (2001) by Christopher Golden. In the novel Hammered, Atticus rides Ratatoskr to the top of Yggdrasil on his quest to steal the golden apples of Iðunn. Ratatosk is referenced in Larry Niven's novel Rainbow Mars. Plans were made to capture a giant squirrel that ran up and down the World Tree (Yggdrasil). Although called "Batatosk" in the story, it is clearly referring to the mythical creature Ratatosk. Ratatosk is the name of the Summon Spirit of Monsters in Tales of Symphonia: Dawn of the New World, though his role is quite a bit different from Norse myth. He is responsible for managing the distribution of mana through the world (via monsters). He resides in Ginnungagap, and also acts as the guardian of the gate to Niflheim. Much of the story of the game is centered around him. The Ratatosk Express is the name given to the train in The Mechanisms' album, 'The Bifrost Incident', which is the setting for the majority of the events in the album. Ratatoskr is a recurring enemy in the video game La-Mulana 2. He is first found at the roots of the tree of Yggdrasil near Níðhöggr (stylized in-game as Nídhogg) and, later in the game, can be found near Veðrfölnir (stylized in-game as Vedfolnir). He plays a prominent role both in both gameplay and plot, and his appearances culminate into a boss battle which occurs in Hel (location) and opens the pathway to fight Hel