Konami's Turtles on Famicom. Difficult, non-linear, and the first TMNT console game before the arcade brawler.
Teenage Mutant Ninja Turtles was developed and published by Konami for NES/Famicom in July 1989 — the first console Turtles game, an action-adventure rather than the later arcade beat 'em up. Players could switch between the four turtles at any time, each with different stats. Non-linear level design opened multiple routes through the sewers and overworld. The game was notably difficult, particularly a notorious underwater bomb-defusal sequence. TMNT sold approximately 4 million copies on NES and became one of the system's best-selling licensed titles.
About this game
Teenage Mutant Ninja Turtles — released in Japan as Gekikame Ninja Den (激亀忍者伝, 'Legend of the Radical Ninja Turtles') on May 12, 1989 — was the first TMNT-related media released in Japan, arriving before the franchise was known there at all. Konami developed the game, and the resulting action platformer became one of the best-selling NES games in North America, cementing the turtles' popularity in Western markets. The game is remembered for its challenging dam-flooding stage and four-turtle switching mechanic.
The Story Behind
The Japan release preceded the North American NES release (June 1989) by about a month. In Japan, the game's manual introduced April O'Neil as Splinter's daughter — a significant story deviation from the Western source material — reflecting localization decisions made to contextualize an IP that Japanese players had no prior relationship with. The franchise's Japanese reception was largely built backward from the success of the games, rather than the other way around.
Tricks & Tales
The infamous underwater dam level — where Donatello must defuse bombs while fighting currents in a time limit — is remembered as one of the most frustrating stages in NES history. Konami chose not to include in-game credits for this title, and the composer has acknowledged uncertainty about which specific tracks were composed by whom. The North American version was published under Konami's Ultra Games imprint, a label used to work around Nintendo's five-games-per-year third-party licensing restriction.
Collector's Guide
Region & Compatibility
Famicom and NES are the same hardware family but use physically incompatible cartridge formats — Famicom carts have a 60-pin connector and a narrower shell, while NES carts use a 72-pin connector with a wider housing. You cannot insert a Famicom cartridge into a North American NES slot without an adapter, and vice versa. The Famicom itself has no lockout chip, so any Famicom cartridge from Japan will run on a Famicom console regardless of origin. If you are buying a Japanese Famicom cart to play on a NES, you will need a 60-to-72-pin physical adapter; if you own a Famicom, Japanese-market software is your native format and no workarounds are needed.
Maintenance Tips
The gold-plated edge connectors on Famicom and NES cartridges pick up skin oils and oxidation over decades — a gentle wipe with a cotton swab dampened in 90% or higher isopropyl alcohol, stroking along the length of the pins rather than across them, is the accepted standard. Let the alcohol fully evaporate before reinserting. The old habit of blowing into a cartridge is folklore: the moisture in breath causes slow corrosion of the contacts over time, and any improvement you felt came from the act of re-seating the cart, not from the breath itself. Nintendo eventually updated its own troubleshooting guidance to say explicitly: do not blow into your Game Paks.
Going deeper
More on keeping a Family Computer (Famicom) / NES alive, and what to check before you buy one:
What to Watch Out For
Before buying, these are the points worth knowing — from someone who handles original Japanese Teenage Mutant Ninja Turtles copies regularly.
Will this Japanese Famicom cartridge work on a North American Nintendo Entertainment System (NES)?
No, not without an adapter. The Famicom uses a 60-pin edge connector while the NES uses a 72-pin connector with a physically different form factor — the two are incompatible at the cartridge slot level. Third-party adapters exist that bridge the pin difference and allow Famicom cartridges to run in a NES. On a Japanese Famicom, NES cartridges face the same incompatibility in reverse. To play Japanese Famicom software, you need a Japanese Famicom, a Famicom-compatible clone console, or a NES fitted with an appropriate adapter.
How should I clean a Famicom cartridge to ensure reliable play?
Apply 90% or higher isopropyl alcohol to a cotton swab and gently wipe the gold-plated PCB edge contacts on the base of the cartridge. Never blow into the cartridge — breath moisture accelerates contact corrosion over time. If cleaning is needed inside, Famicom cartridges use 3.8mm security game bit screws (not standard Phillips); a security bit screwdriver is required to open the shell without damage. Note that most Famicom boot failures originate in the 60-pin console slot rather than the cartridge itself — cleaning the console slot contacts separately with a contact cleaning tool is often the more effective fix.
Before You Buy
Things worth knowing before you buy Teenage Mutant Ninja Turtles
A short checklist for buying a used Famicom cartridge wisely — useful with any seller, anywhere.
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Choose a seller who tests it before shipping
A copy that has actually been powered on and checked is a known quantity. An untested one is a gamble you only settle after it arrives.
Look for a seller who states it was function-tested and says what they confirmed. A serious seller can tell you exactly what was checked.
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Make sure it fits your console
This is a Japanese Famicom cartridge with a 60-pin connector; a North American NES uses a 72-pin slot, so it will not fit directly.
Play it on a matching Japanese console or a region-free system, and confirm the listing states the region.
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If this title saves your progress, check the battery
Cartridges that save use a small coin-cell battery that fades over decades — a dead one wipes your save without warning.
Ask the seller whether the save function was tested. Replacing the battery is possible, but doing so erases any existing save.
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Check that the contacts are clean
Dirty edge contacts are the most common cause of startup and sound trouble in cartridges of this age.
Choose a seller who cleans the contacts before shipping. A note that it was tested and cleaned means the basics were handled.
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Confirm it is genuine, not a reproduction
Sought-after titles are targets for reproduction boards with replacement labels.
Ask for a photo of the circuit board and look for factory markings. Favour a shop with a licensed second-hand dealer permit (古物商) — by law its stock has a traceable origin, your simplest guard against fakes.
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Read the seller's reviews and return policy
A 100% positive record across thousands of sales is close to a guarantee — packing, communication and problem-solving all work for everyone. A return policy protects you if something is off.
Read the feedback and confirm a clear return window before you buy.
The last step before buying anywhere is knowing what it's worth.
See what it's selling for on eBay →Unexpected Discoveries
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