Kato designed it for ordinary players. Someone else decided to double the damage.
Masato Kato took over Ninja Gaiden III from Hideo Yoshizawa, the designer of the first two games, and said he wanted to take the series in a new direction. He decided to make it less punishing — 'to create a game a normal player can enjoy,' he said. That was the version released in Japan in June 1991. When Tecmo prepared the North American release two months later, they doubled the amount of damage the player took. The password system in the Japanese version was removed entirely. It was the same game, but with a different philosophy baked in. Kato made a choice; someone else remade it.
— inspired by Masato Kato
About this game
Ninja Gaiden III: The Ancient Ship of Doom is the third entry in Tecmo's NES Ninja Gaiden series, released in Japan on June 26, 1991, and in North America in August 1991. Designed by Masato Kato, who took over from Hideo Yoshizawa, the game shifted the series toward a science-fiction motif. The Japanese Famicom version was designed to be accessible to ordinary players and included a password system; the North American NES release removed the password feature entirely and doubled the damage received from enemies, making it significantly more difficult.
The Story Behind
Ninja Gaiden III was released in Japan on June 26, 1991, and in North America in August 1991. Masato Kato designed the game, taking over from Hideo Yoshizawa, who had designed the first two entries in the NES series. Kato stated he wanted to take the series 'in a new direction,' shifting from the Cthulhu Mythos motif of the previous games to a more science-fiction aesthetic. The game was later ported to the Atari Lynx in 1993 and included in Tecmo's Ninja Gaiden Trilogy compilation for Super NES in 1995.
Tricks & Tales
The Japanese Famicom version includes a password system that allows players to continue from specific stages. This feature was completely removed from the North American NES release — all password code was deleted from the cartridge. The difficulty was also drastically increased in the North American version: Tecmo doubled the amount of damage the player receives from enemy attacks, making a game that was designed to be 'enjoyable for normal players' significantly more punishing.
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
Explore the machine this game ran on, and what to check before you buy or care for one:
What to Watch Out For
Before buying, these are the points worth knowing — from someone who handles original Japanese Ninja Gaiden III: The Ancient Ship of Doom copies regularly.
Does Ninja Gaiden III for Famicom have a battery save?
No. Ninja Gaiden III does not use battery backup. The Japanese Famicom version includes a password system to continue from specific stages, but the North American NES release removed this feature entirely. Both versions require completing the game in a single session if you want to reach the ending without using passwords (in the Japanese version) or without continuing from the beginning (in the North American version).
Will a Japanese Famicom copy of Ninja Gaiden III work on a North American NES?
Not without an adapter. Famicom and NES cartridges are physically different shapes — the Famicom uses a 60-pin connector, while the NES uses a 72-pin connector. You need a Famicom-to-NES adapter to play Japanese Famicom games on a North American NES console. The game itself has no region lock beyond the physical cartridge shape difference.
Before You Buy
Things worth knowing before you buy Ninja Gaiden III: The Ancient Ship of Doom
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.
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