Warning: The following contains spoilers forTeenage Mutant Ninja Turtles: Mutant Mayhem.Teenage Mutant Ninja Turtles: Mutant Mayhembrings a new version of the titular characters to the big screen, and it does it with a lot of Easter eggs.Teenage Mutant Ninja Turtleswas first published as a comic book series in 1984. By the end of the 1980s, the darker comic had already been adapted into a lighter animated series and kids were obsessed. Each movie or animated series has adapted the characters slightly differently ever since.

Teenage Mutant Ninja Turtles: Mutant Mayhemis lighthearted in a lot of ways, but it introduces a lot of familiar characters from theNinja Turtlescanon in a new way. Most of the characters aren’t Easter eggs themselves as they play their own roles in the movie’s new story, but there are a lot of harder-to-spot Easter eggs and references throughoutTeenage Mutant Ninja Turtles: Mutant Mayhemfrom pop culture nods to comic book references to hints at what’s to come.

Nickelodeon orange splat logo

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The Nickelodeon Logo Isn’t Orange

Because Paramount and Nickelodeon are the studios behindNinja Turtlesprojects, the Nickelodeon logo is shown on the screen as the movie begins. Typically, the Nickelodeon logo is bright orange. It has been for years, despite Nickelodeon having a strong relationship with green slime in the 1990s. The Nickelodeon logo inMutant Mayhem, however, is slime green. It’s the same color as the ooze that mutates Splinter and the turtles.

TCRI

TCRI is an acronym. It stands for Techno Cosmic Research Institute in the Ninja Turtles canon. InMutant Mayhem, it’s the facility where Baxter Stockman works, and it’s the same company that comes after him to take all of his experiments from him, though they don’t succeed. They find his research, but can’t replicate it. His work with the ooze leads to the creation of characters like Superflyand Genghis Frog. Most often presented as a scientific research facility, TCRI is a front for a race of aliens who crash-landed on Earth.

Cynthia Utrom

Cynthia Utrom appears to be the head of TCRI inMutant Mayhem. She’s the one who orders the attack on Baxter Stockman and tries to “milk”the Ninja Turtles for their ooze-mutated blood. She’s also likely an alien. The Utroms are a race of aliens that use TCRI as a front for their activities on Earth. Depending on the continuity, the Utroms are sometimes seeking a way back to their planet, while other times, they are looking to take over Earth.Mutant Mayhemdoesn’t reveal Cynthia Utrom as an alien, but it does seem likely that she is one of the aliens considering her name and her company.

Nickelodeon References

With the modern incarnations of animatedNinja Turtlesbeing a part of Nickelodeon, it’s no surprise that there are a lot of references to Nickelodeon characters in the movie. A character actor in a Spongebob Squarepants costume can be seen in Time Square. The turtles also make a reference to Arnold’s football-shaped head from the animated seriesHey Arnold.

The Ninja Turtles Know A Lot Of Pop Culture References

Nickelodeon’s properties, however, aren’t the only pop culture references the turtles know. They’ve been to an Adele (the “Easy On Me” singer) concert and have seen theFast and Furiousmovies. They also have a healthy appreciation for manga and anime. Stickers from different franchises can be seen on their belongings. Donatello is also an avid video game fan, claiming he learned to drive fromplaying the Forza racing games. The group also watches the iconic 1980s movieFerris Bueller’s Day Off, sings some BTS, and knows who the animated characters Shrek, Gru, and Megamind are. They definitely know their pop culture.

Not all the pop culture references are ones younger audience members will recognize either. Superfly comes through a doorway at one point saying, “six in the morning police at my door.” Those are song lyrics from “6 ‘n the Mornin’” by Ice-T.

TCRI in a Ninja Turtles animated series

Jackie Chan References

Jackie Chan voices Splinter forTeenage Mutant Ninja Turtles: Mutant Mayhem, and the fight scenes take clear inspiration from the style used in his movies. For one thing, the fight scenes are incredibly funny, and for another, the characters don’t stick to just using their weapons but instead rely on found objects to become weapons. Splinter even uses a rolling desk chair to give himself an advantage during the fight at TCRI. According to co-writers/director Jeff Rowe, those similarities to Chan’s style are intentional. In fact, the movie took inspiration from Chan’s moviesRumble in the BronxandPolice Story(via Screenrant) for the fight sequences.

Ninja Rap

“Go ninja, go ninja, go” has a distinct rhythm to it. When the phrase is uttered, even briefly, ‘90s fans will recognize it as part of Vanilla Ice’s iconic “Ninja Rap.” The music is fromTeenage Mutant Ninja Turtles II: The Secret of the Ooze. Vanilla Ice performs it when the turtles end up at a club. InMutant Mayhem, the music is heard during the fight in the chop shop as the radio in one of the cars turns on.

Eastman High And The Laird Building

The high school that April O’Neil attends inTeenage Mutant Ninja Turtles: Mutant Mayhemis Eastman High. That’s a reference to Kevin Eastman, one of the original creators of theNinja Turtlescomic books series. Likewise, when April and the turtles meet up to talk, they do it on the roof of a building that has a large lit sign over it that says “Laird.” Peter Laird is also one of the original creators of theTeenage Mutant Ninja Turtlescomics. Their original stories were much darker than the animated shows and live-action movies that have been aimed at younger audiences.

The Three Chrises

When Splinter tries to throw a party for his turtle sons, he does it with three life-size cardboard cutouts of humans. The humans are three of the most famous Hollywood Chrises: Chris Evans (Captain Americamovies), Chris Pine (Star Trekmovies), and Chris Pratt (Guardians of the Galaxymovies). The only one missing is Chris Hemsworth. Splinter even calls one of them the “best Chris,” and it’s likely Chris Evans who previously voiced Casey Jones, a vigilante and friend of the turtles, in another animated project.

Channel 6

The news channel most often seen inTeenage Mutant Ninja Turtles: Mutant Mayhemis Channel 6. That’s also the same channel that theturtles’ usual ally April O’Neilends up on in the movie. She walks into a live broadcast to tell the truth about the turtles when they are incorrectly reported to be the villains. Channel 6 is the same news network that April O’Neil works for in the early animated series for the franchise.

Mutant Mayhem Voice Cameos

Some unexpected voice casting was already known before the movie was released,like Rose Byrne as Leatherhead. There are, however, a lot of characters in the movie who only appear for one or two lines and disappear, so the potential for voice cameos is high. One of those cameos is from Youtuber MrBeast. He voices a man in a flashback to Splinter’s bad experience with humans in Time Square. Kevin Eastman, one of theNinja Turtlecreators, is also credited as one of the New Yorkers in the climactic battle sequence. There are likely even more voice cameos that won’t be known until the full voice cast is released.

Mid-Credit Scene Teases A Classic Ninja Turtles Villain

In the grand tradition of superhero movies,Teenage Mutant Ninja Turtles: Mutant Mayhemfeatures a mid-credit scene. More of a sequence to tease what happens next with the turtles, the events make it clear that Cynthia Utrom is still watching the turtles, but she also wants to call in The Shredder to get to them.

Shredder has become the most iconic ofNinja Turtlesvillains, appearing in every adaptation of the story. The tease means that Shredder will likely appear in theTeenage Mutant Ninja Turtles: Mutant Mayhemsequel.

Cynthia Utrom against a pink sky in Teenage Mutant Ninja Turtles Mutant Mayhem

SpongeBob in SpongeBob SquarePants

Superfly in Teenage Mutant Ninja Turtles Mutant Mayhem

Splinter sitting in his chair in Mutant Mayhem

The Laird building in Mutant Mayhem

Chris Evans As Captain America

April and the turtles in a darkroom with pictures hanging in Mutant Mayhem

Youtuber MrBeast in front of two symbols for play