The first issue of Kevin Eastman and Peter Laird’s Teenage Mutant Ninja Turtles (TMNT) was published in May of 1984. Since then, the TMNT have gone on to achieve worldwide mainstream success thanks not only to their original comics run but also a number of influential cartoons, videogames, and wave-upon-wave of action figures. This year, I’m emphasising third entries and time travel shenanigans in the popular franchise every Tuesday in May!

Released: 30 August 2022
Originally Released: 11 December 1992
Developer: Digital Eclipse
Original Developer: Konami
Also Available For: Mega Drive, Nintendo Switch, PC, PlayStation 4, PlayStation 5, Xbox One, and Xbox Series S
The Background:
Kids in the late-eighties and early-nineties were enamoured by the Teenage Mutant Ninja Turtles (known as Teenage Mutant Hero Turtles here in the UK), with the game-changing cartoon dominated the airwaves years before Mighty Morphin’ Power Rangers (1993 to 1996) and Pokémon (1997 to present). Though the cartoon was far tamer than the original Mirage Comics, the TMNT’s popularity not only spawned a series of live-action movies (of varying quality), comic books, a whole slew of action figures, and numerous videogames. Konami’s laid the foundation for some of the franchise’s most memorable videogames with their original TMNT arcade game and the developers only expanded upon those efforts with the much-beloved sequel, Teenage Mutant Ninja Turtles: Turtles in Time (Konami, 1991). Not only was Turtles in Time bigger and better, while still retaining the simple pick-and-and-play mechanics of an arcade beat-‘em-up, it also gained further popularity thanks to a surprisingly faithful home console port. In addition to an unfairly criticised 2.5D remake in 2009, Turtles in Time served as the basis for this Mega Drive title, though there were some notable differences between the two versions, particularly regarding their length. Indeed, while The Hyperstone Heist was praised for its graphics and gameplay, its difficulty was criticised at the time. For decades, gamers were forced to pay through the nose for ridiculously expensive physical copies of the game, or resort to emulating the title, but that all changed when The Hyperstone Heist was included in this Cowabunga Collection alongside a host of other games and quality of life features.
The Plot:
The Turtles leap into action when their archnemesis, Oroku Saki/The Shredder, uses the power of the mysterious Hyperstone to shrink and capture half of Manhattan Island, battling through waves of Foot Soldiers to put an end to the Shredder’s bid for world domination.
Gameplay:
If you’ve played Turtles in Time then The Hyperstone Heist will be immediately familiar to you; the game is, essentially, a stripped down and patchwork reordering of the classic arcade time travel jaunt. Just like the two arcade titles that preceded it, The Hyperstone Heist is a 2D sidescrolling beat-‘em-up that allows up to two players to battle side by side across five stages, with each comprised of a number of different areas unlike Turtles in Time and even including some entirely new stages and bosses. Since I’m playing this version on the Xbox Series X, it should be no surprise that this game can now be played both on- and offline co-operative play, and you can even opt to turn friendly fire on or off to make things a little harder, or easier, on yourself when playing with a friend. Players can once again select from one of the four Ninja Turtles; each one controls exactly the same and are defined primarily by the reach of their weapons (putting characters like Leonardo and Donatello at an advantage). Gameplay couldn’t be simpler; you go from the left side of the screen to the right using X to pummel baddies with some simple combos, B to jump, and X in mid-air to pull off a couple of jumping attacks depending on how high you are when you press it. If you press B and X together, you’ll pull off a power attack at the cost of some health, and you can press Y to dash ahead. While you can pull off dash attacks in this way, it can be a bit clunky as I find the dash works better as a double tap of the directional pad and, while you can no longer toss enemies at the screen, you can still slam them by attacking up close and fend off enemies attacking from behind with a back attack.
Although The Hyperstone Heist has less stages than Turtles in Time, they’re much longer and even include transitions between different screens/areas; so, while you start in the sewers in this game, you hop up to the streets and play through a section of Alleycat Blues before dropping down into an alternative version of the Sewer Surfin’ stage. As ever with these TMNT arcade titles, there are a few opportunities to interact with the environment; traffic cones, candlesticks, barrels, explosive drums and boxes of fireworks and fire hydrants can all be used to take enemies out. While the game is lacking some of the more memorable stage hazards like Krang’s giant android body and the wrecking balls, many of these still crop up throughout certain stages; you can fall down holes, without fear of damage, to avoid attacks, step on loose planks, and injury your toes on spiked hazards. Turrets will pop up to freeze you solid, enemies can still grab and hold you for a beating, and electrical bolts and lasers will also still fry you to your skeleton. While you’ll still hop onto a rocket-powered board to fend off enemies across the ocean, these autoscrolling sections are limited to just the one instance here; things are mixed up a little with a high abundance of health-restoring pizza, flying Mousers, and lots of wreckage from the ghost shop to dodge and interact with, however. The Hyperstone Heist also includes the Technodrome stage that featured in the home console port of Turtles in Time, complete with the traditional elevator gauntlet section (only now the elevator goes down instead of up), but also shows its limitations and laziness by dedicating an entire stage to a boss rush (without any pizza to heal yourself up).
Graphics and Sound:
On a base level, The Hyperstone Heist is functionally very similar to the home console port of Turtles in Time, sporting the same heads-up display, similar sprite work, and the same environments and enemies, but it can’t be denied that the whole game has suffered a visual downgrade. This is evident right from the title screen, despite a unique new introductory sequence, and the far less impressive voice clips and limited animation frames. The TMNT even seem to be slightly out of proportion compared to their enemies, something I never noticed in the two versions of Turtles in Time, and the game is far more reliant on text, with dialogue featuring before and after each boss encounter. Still, everything looks and feels very true to the game’s arcade roots and continues to capture the quirky, slapstick nature of the animated series with its cartoony presentation and sound effects. The gameplay is noticeably slower, however, thanks to the lack of a turbo mode and it feels like a longer, far more tedious experience thanks to the levels dragging on a bit and the sheer number and aggression of enemies at any one time.
For the most part, the game’s levels are ripped right out of Turtles in Time, specifically the home console port; Sewer Surfin’ has been reduced to an on-foot stage (though the Pizza Monster still somehow jump out of the water), Alleycat Blues is a transition between the two sewer stages, and the pirate ship has been redesigned into a ghost ship, with the cave from Prehistoric Turtlesaurus now a transition to the Shredder’s secret lair thanks to the lack of a time travel plot. The game has supplanted the time travel stages of Turtles in Time with entirely new environments, with this most apparent in Scene 3 where you battle across a cliff top into a Japanese temple and a dojo where Shredder trains his disciples. Turtles in Time’s more visually interesting stages, like Prehistoric Turtlesaurus and Neon Night Riders, are replaced by a simple damp cave and a less thrilling water chase sequence, though the Technodrome remains largely unchanged. The final stage is also largely the same, though the Statue of Liberty has been replaced by this weird eldritch abomination of a machine in the background. Some of Turtles in Time’s cutscenes are also included, though altered to fit the slightly changed plot, and an entirely new ending sequence and defeat animation for the Shredder has been included that features some decent sprite work and partially animated sequences.Finally, the game’s soundtrack is largely the same as Turtles in Time’s but noticeably sped up and lacking in the oomph heard in the arcade release.
Enemies and Bosses:
As far as I could tell, every enemy you face in The Hyperstone Heist is ripped right out of the home console version of Turtles in Time. This means you’ll be fending off an endless swarm of robotic Foot Soldiers, each sporting different coloured pyjamas and different weapons, including throwing stars, swords, nunchaku, daggers, and tonfa. There is one new variant, however; a magenta-coloured ninja who breaths fire at you! Also returning are the Mousers (which scurry about and bite your hand), Roadkill Rodneys (which electrocute you with whips and fire lasers at you), these little laser firing spider-bots, and the Xenomorph-like Pizza Monsters. The Rock Soldiers also make an unwelcome appearance, generally in groups of at least three, to charge at you and fire heavy-duty ordinance right in your face. While many of the stage hazards return from Turtles in Time, you’ll spot a couple of new ones in Scene 3 thanks to this being an entirely new stage; these include a spiked ceiling, spiked bamboo canes that pop up from the floor, and ceremonial armour that fires electrical lasers at you.
Every stage ends in a boss battle, with all of the bosses but one being repurposed from the two previous TMNT arcade games, though each sport a helpful life bar like in Turtles in Time’s home console port. After battling through the sewers and the city streets, you’ll face off against the monstrous Leatherhead. While the arena might be different, Leatherhead’s strategy is exactly the same as in Turtles in Time; he hops and scurriesabout, punching you or swiping with his tail up close and tossing daggers from across the screen, and basically sets the template that’ll work for every boss in the game which is get in there, land a quick combo, and jump away before you take a hit. After fighting through the decidedly unhaunted ghost ship, you’ll fight Rocksteady; sadly, there’s no Bebop in this game and this is basically just a copy/paste of his solo fight from the original arcade game as he charges at you, fires a machine gun in a spread, and tosses a few grenades into the arena, leaving himself wide open for your attacks in the process. Thankfully, the game does include a new boss battle at the end of Scene 3; here, you’ll face Tatsu from the first two live-action movies. Although he threatens that you’ll have to defeat his minions first, the Foot Soldiers actually fight alongside him, but it’s pretty simply to focus on him, avoiding the darts he fires across and rains down the screen, and pummelling him when he stands still.
As mentioned, The Hyperstone Heist drops the ball somewhat with Scene 4, which takes place entirely in a dank cave and forces you to battle all three bosses again, one after the other, in what is fittingly called “The Gauntlet”. To be fair, the Pizza Monsters do show up again and all of the enemy sprites now have a new colour palette, and there’s no health here or in the final stage to help you through, but it’s pretty damn lazy to just shoehorn in a boss rush like this. On the plus side, it does culminate in a battle against Baxter Stockman that’s again ripped from the first arcade game; Baxter hovers about in this craft dropping Mousers on you and generally being a hard target, but I would’ve preferred to see an original stage ending in this boss fight. Similarly, you’ll again face Krang in the Technodrome but its in an adapted version of the Neon Night Riders battle rather than him being in his UFO; Krang’s android body dashes at you with a kick, smacks you with a clap attack, fires missiles from his chest, and rains bombs into the arena, but he still likes to gloat and leave himself an open target. Finally, you’ll take on the formidable Super Shredder in the game’s last stage just like in the home console version of Turtles in Time. While Super Shredder’s attacks and strategy remain the same, he’s been tweaked slightly; his projectiles and aura are now coloured coded, with blue bolts freezing you, green fireballs instantly killing you by reverting you to a normal turtle, and red flames hurting your toes.Additionally, I was only able to land a hit on Super Shredder when he was firing his freezing shot and he still hovers and dashes about to make himself an annoying target.
Power-Ups and Bonuses:
The Hyperstone Heist features exactly the same power-ups as those seen in Turtles in Time, namely the odd pizza to restore your health and one single, solitary Pizza Power item that sends you into a short-lived frenzy. You will also be awarded an extra life at every 100, 300, 500, 700, etc points, which is useful if you find yourself struggling.
Additional Features:
Similar to the home console version of Turtles in Time, The Hyperstone Heist features a few options you won’t see in the arcade releases; you can play on three different difficulty levels (Easy, Normal, and Hard), with different endings assigned to each one, set your lives and continues to anywhere from one to five, enable or disable back attacks, and make use of a sound test. The game may have taken a further graphical hit during the conversion, and there’s no versus or time trial mode, but you can still pick between two colour schemes, “Comic” and “Anime”, which gives the TMNT new colour palettes in a nice touch. As you’d expect, the Cowabunga Collection adds some extra features to the game; you’ll earn a 70G Achievement for completing each game on any difficult level, rewind the gameplay with the Left Bumper, and use the Right Bumper to access save states and display options. You can also choose your starting level and enable some additional lives using the collection’s enhancements, flick through a strategy guide, choose between the American and Japanese versions (with minimal differences that I could see), view the game’s box art and manuals, or simply watch the game play itself.
The Summary:
Naturally, there’s a lot to like about Teenage Mutant Ninja Turtles: The Hyperstone Heist, specifically because it’s built on and is essentially a rejigged version of one of the most beloved TMNT arcade games ever made. However, while the gameplay and presentation owes pretty much everything to Turtles in Time, there’s just enough here to allow The Hyperstone Heist to stand on its own two feet. The new stages, environments, and the way it shuffles Turtles in Time’s stages around to fit its slightly changed narrative makes for a fun and action-packed gameplay experience that’s both similar and altogether very different. Most noticeably is the face that Turtles in Time was a short, sharp arcade style experience that never outstayed its welcome, but The Hyperstone Heist certainly drags on thanks to its long stages. While this is great for longevity, it equals not just unnecessary padding but also highlights just how repetitive the beat-‘em-up gameplay is and draws undue attention to the graphical hit the game has taken in the conversion to the Mega Drive. The same trappings that restricted its two arcade predecessors remain but are more glaring as there’s only one Pizza Power power-up and the inclusion of a lazy boss rush and lack of additional gameplay options and mechanics certainly makes it inferior to its arcade and Super Nintendo counterparts. However, it’s easily the best and most entertaining TMNT videogame on the Mega Drive; it’s not quite as good as Turtles in Time but it’s good enough to be a decent brawler for the system and, while the additional features in this version are somewhat lacking compared to other games in the Cowabunga Collection, it’s great to see this rare and expensive gem of a fighter readily available for a new generation of gamers.
My Rating:
Great Stuff
Did you ever own Teenage Mutant Ninja Turtles: The Hyperstone Heist on the Mega Drive? How do you think it compares to both versions of Turtles in Time? What did you think to the redesigned and additional stages? Were you disappointed by the artificially enhanced length of the game and the lack of new boss battles? Which of the characters was your go-to and what did you think to the additional features added to the Cowabunga Collection? Whatever you think, feel free to share your memories of The Hyperstone Heist down in the comments or on my social media.
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