Teenage Mutant Ninja Turtles x Godzilla #4 pushes the crossover to its logical extreme: if the Turtles are fighting kaiju, then eventually they need to become kaiju themselves. The issue fully embraces that escalation, delivering multiple monster-sized brawls, surprising character moments, and one of the wildest visual payoffs the series has offered so far.
Like the previous installment, this issue knows exactly what kind of story it is telling. It does not chase realism or subtlety. Instead, it leans into spectacle, cartoon logic, and classic kaiju theatrics while still weaving in the emotional and thematic threads that define both franchises. The result is a bombastic penultimate chapter that balances outrageous action with just enough story grounding to keep the chaos meaningful.
Picking Up the Pieces in Tokyo
The issue opens with the Turtles and Splinter searching for Donatello after his emotional departure at the end of the previous chapter. Tokyo has spent the last three days under near-constant kaiju assault, and the team is already running on nerves when a small capsule-like aircraft crashes nearby. Inside is a wounded Japanese pilot from the kaiju defense group G-Force.
The pilot wastes no time explaining the dire situation. G-Force is no more, Mechagodzilla has fallen, and the Technodrome has stolen genetic material from several kaiju. Before dying from his injuries, he passes along samples of kaiju DNA and shares that he was tracking a mysterious device that has been amplifying the monsters’ aggression.
That device, as Leonardo grimly concludes, is the Technodrome.
It is a strong opening that accomplishes several things quickly. It reinforces the scale of the threat, confirms the villains’ plan to weaponize kaiju DNA, and raises the stakes by showing that even Earth’s kaiju defense forces have already fallen. From here, the story wastes no time throwing the Turtles directly into danger.
Enter the Kaiju Rogues Gallery
Following a tunnel left behind by the Technodrome, the Turtles infiltrate the massive fortress and discover tanks containing the mutated substance known as kaijutagen. Splinter quickly deduces that the substance contains the stolen DNA of several iconic monsters, including Gigan, Destoroyah, and Hedorah.
The revelation barely has time to sink in before the entire Technodrome lurches violently. Something enormous has grabbed it and thrown it from its underground hiding place.
That “something” is none other than the newly mutated Bebop and Rocksteady, now fully transformed into kaiju-sized monstrosities calling themselves Gigbop and Rockstoroyah. Their designs are exactly what fans would hope for: grotesque, exaggerated, and unmistakably recognizable as twisted versions of the classic villains.
The fight that follows emphasizes the massive gap between the heroes and their new enemies. Against monsters of this scale, even the Turtles’ usual skills are meaningless.
Which leads them to a desperate solution.
When the Turtles Become Kaiju
Cornered and outmatched, the Turtles make a risky decision. Using the kaiju DNA samples and a stolen vial of kaijutagen, they transform themselves into kaiju hybrids. The results are instantly memorable.
Leonardo merges with Godzilla, gaining immense power and beam-like energy attacks. Raphael channels the fiery aggression of Rodan, while Michelangelo embodies the destructive energy of King Ghidorah, albeit with only a single head.
What follows is exactly the kind of over-the-top spectacle the series has been building toward. Giant turtle-kaiju clash with their monstrous enemies across the ruined cityscape. Energy beams collide, massive punches land with earth-shaking force, and the battles feel appropriately chaotic and cinematic.
The choreography shines here. Every character’s abilities are used creatively, and the fight manages to feel both playful and intense without losing clarity.
Science, Strategy, and a Bit of Grounding
Just as the Turtles begin gaining momentum, the story introduces an unexpected complication. Their bodies are not adjusting properly to their enormous size. Without the Jet Jaguar-based scaling technology previously mentioned in the series, called the Ibuki system, their internal systems cannot keep up with their transformation.
Normally, a sudden scientific explanation like this might feel like a forced obstacle, but the comic earns it through the earlier setup involving Jet Jaguar and Dr. Kinoshita’s research. The result is a moment that adds tension without completely derailing the cartoon logic the series has embraced.
It also grounds the story slightly. Even in a tale filled with giant turtles and alien warlords, the consequences of messing with kaiju biology still matter.
Enter Mothra’s Champion
Just as the fight begins turning against the exhausted Turtles, backup finally arrives. The Technodrome’s augmenter device briefly distracts the villains, and then the sky opens to reveal April O’Neil reborn as Mothra’s avatar.
Her design is one of the visual highlights of the entire crossover. April retains her iconic yellow jumpsuit and iconic red hair, but the addition of Mothra’s wings, glowing eyes, and fuzzy moth-like features creates a striking fusion of human and kaiju mythology.
Guided by Mothra, April restores balance to the battlefield and ultimately reverses the kaiju mutations afflicting Bebop and Rocksteady. The once towering monsters shrink down to smaller-than-normal size, allowing Casey Jones and Mondo Gecko to handle them with ease.
It is a clever resolution that reinforces Mothra’s traditional role in the Godzilla mythos as a force of balance and restoration.
Jetatello vs. a Kaiju God
While the Turtles fight their battle, another confrontation unfolds elsewhere in Tokyo. Krang has transformed himself using Hedorah’s DNA, growing to kaiju proportions and declaring himself a god.
Unfortunately for him, Godzilla is not impressed.
As Krang gains the upper hand, their clash is interrupted by the arrival of Donatello and Dr. Kinoshita with their newly completed creation: Jetatello, a fusion of Metalhead’s processor and Jet Jaguar’s body. The giant robot wastes no time dismantling the mutated Krang in a satisfying display of mechanical power.
In a welcome twist, Dr. Kinoshita ultimately decides that Jetatello should not attack Godzilla. Recognizing that the King of the Monsters was provoked by human interference, she allows him to retreat peacefully into the ocean.
It is a surprisingly thoughtful moment that reinforces one of Godzilla’s oldest themes: humanity’s role in provoking the disasters it later struggles to contain.
The Calm Before the Final Storm
With the villains defeated and the kaiju chaos temporarily resolved, April, still guided by Mothra, reveals that the battle is far from over. Godzilla has returned to Odo Island, the place where the story’s deeper history began.
Waiting there is the final threat: Shredder, now reborn as the monstrous Mecha-Shredder and ready to unleash his revenge.
It is a classic penultimate issue ending, setting the stage for a final confrontation where the worlds of TMNT and Godzilla will collide one last time.
Art That Thrives on Kaiju Scale
Artist Fero Pe continues to be the perfect visual partner for this crossover. His ability to convey scale makes every kaiju confrontation feel massive without sacrificing clarity. Whether it is Gigbop looming over the city or Leo’s Godzilla-powered energy attacks slicing through the battlefield, the action remains easy to follow and consistently exciting.
Colorist Luis Antonio Delgado complements this perfectly with bold palettes that highlight the contrast between neon kaiju energy blasts, burning cityscapes, and the bright designs of the TMNT cast. The visual presentation leans heavily into pulpy spectacle, which is exactly what this crossover demands.
Final Thoughts and Rating
Teenage Mutant Ninja Turtles x Godzilla #4 is everything a crossover like this should be. It delivers giant monster fights, absurd character mashups, and explosive action while still respecting the themes that make both franchises work.
The kaiju versions of the Turtles are a genuine highlight, and the issue’s multiple battles, from the Technodrome showdown to Jetatello’s fight with Krang, are some of the most entertaining sequences the mini has produced so far. Even when the story introduces a bit of pseudo-science to complicate the action, it never loses sight of the pulpy fun that defines the series.
Most importantly, the comic continues to strike a rare balance. It gives fans the outrageous spectacle they want while still honoring Godzilla’s themes of balance, consequence, and humanity’s interference with nature.
With one issue remaining and Mecha-Shredder waiting on the horizon, the stage is set for a finale that could easily become the most explosive chapter of the entire crossover.
Rating: 9/10
TMNT x Godzilla #4 delivers the kaiju-sized spectacle fans came for, turning the Turtles themselves into monsters and setting up a massive final showdown that promises to bring the crossover to an unforgettable conclusion.