Anime-licensed fighter on Saturn, based on the 1995 Ninku series. Wind-style martial arts, early Saturn release.
Ninku was developed and published by Bandai for Sega Saturn in 1995 — a fighting game based on the Ninku manga and anime by Koji Kiriyama. Set in a post-war world where fighters used wind-based martial arts, the game featured characters from the anime series. Ninku received mixed reviews as a fighting game but served as an example of the anime tie-in fighting game genre that was common for Saturn hardware during the mid-1990s, when Bandai actively licensed properties for fighting game formats.
About this game
Ninku: Tsuyokina Yatsura no Daigekitotsu! is a 2D fighting game for the Sega Saturn, published by Sega and based on the Ninku series — a manga by Koji Kiriyama that was also adapted into a popular anime. Released only in Japan, it lets fans pit the series' ninja-martial-artist characters against one another. It is a tie-in title aimed at viewers of the show of the period.
Gallery
Collector's Guide
Region & Compatibility
The Sega Saturn enforces a strict regional lockout in hardware. A Japanese NTSC-J console will not boot PAL or NTSC-U discs, and vice versa. To play import software you need one of three solutions: a mod chip soldered to the board, a cartridge that plugs into the expansion slot and overrides the region check (such as an Action Replay or dedicated region-free cart), or a replacement region-free BIOS chip. Note that region unlocking alone does not change the video refresh rate — a PAL console playing an NTSC-J disc will still run at 50 Hz unless a separate frequency mod is also applied.
Maintenance Tips
The Sega Saturn reads GD-style discs but uses a standard CD-ROM drive, so lens care is the same as any optical drive: keep discs clean, handle them by the edges, and store them in cases. The more well-known maintenance issue is the internal CR2032 battery that backs the SRAM save memory and the real-time clock. This battery was typically rated for one to two years of standby use; on any console manufactured in the 1990s, it has long since expired. The first symptom is the system asking for the date and time at every boot. If that prompt appears, replace the battery promptly — save data corruption or total loss follows shortly. The battery can be swapped while the console is powered on (hot-swap) to avoid losing existing saves.
What to Watch Out For
Before buying, these are the points worth knowing — from someone who handles original Japanese Ninku: Tsuyokina Yatsura no Daigekitotsu! copies regularly.
Will this Japanese Sega Saturn disc work on a North American or European Saturn?
No. The Sega Saturn uses BIOS-enforced regional lockout. Japanese discs will not run on Western Saturn consoles without modification — options include a mod chip, a region-free BIOS swap, or an Action Replay cartridge (which bypasses region protection on many titles). A Japanese Sega Saturn is the most straightforward solution. The discs themselves are standard CD-ROM — the incompatibility is software-only.
Does the Sega Saturn require a backup memory cartridge to save this game?
The Saturn has a small internal backup memory (approximately 32KB) maintained by an internal CR2032 battery. This shared memory fills quickly across multiple games. Many Saturn titles — especially RPGs — recommend or require a Saturn Backup Memory cartridge for adequate save space. If the internal CR2032 battery is dead, the console loses all internal saves on power-off. Replacing the battery is a straightforward maintenance task and is strongly recommended for any Saturn that has not had it changed.
How should I inspect and care for a Sega Saturn disc?
Check the data side under light for scratches. Wipe from the center outward in straight radial strokes with a soft lint-free cloth — never circular. The Sega Saturn laser is known to be sensitive as hardware ages; if a disc fails to load despite appearing clean, the console laser may need cleaning or recalibration. Laser failure is one of the most common maintenance issues in Saturn hardware.
Before You Buy
Things worth knowing before you buy Ninku: Tsuyokina Yatsura no Daigekitotsu!
A short checklist for buying a used Sega Saturn disc 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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Check the disc for scratches
Deep scratches on the playing surface cause freezes and read errors. Light surface marks are usually fine.
Ask for a clear photo of the disc's underside. A seller who tested it will confirm it loads and plays through.
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Make sure it fits your console
This is a Japanese Saturn disc. The Saturn is region-locked, so a Japanese disc needs a Japanese console or a region workaround.
Play it on a matching Japanese console or a region-free system, and confirm the listing states the region.
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Saturn saves rely on a console battery
The Saturn keeps internal saves on a CR2032 battery in the console (not the disc). A dead console battery loses internal saves and resets the clock.
This is about your console, not the disc — but worth knowing so saves aren't lost.
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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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