In Japan, the players were delinquents from a tough high school. Overseas, the same team became Team Japan.
Technos Japan built Nekketsu Koko Dodgeball Bu: Soccer Hen for the Famicom in 1990, the fourth entry in its Kunio-kun series of delinquent-school sports games. Reppatsu High's team of tough kids brawled through soccer matches without referees, tackling opponents hard enough to send them flying, alongside rival squads modeled on ninjas, yakuza, and monks. Later that year, Nintendo and Technos Japan brought the same game engine to the NES in North America — but the school uniforms and gang names were gone. Reppatsu High became Team Japan. The ninja team, the yakuza team, every delinquent squad was repainted as a national team, and the game was renamed Nintendo World Cup. Even the passwords changed character: the Japanese version handed players a 4-digit code after a loss, so they could try again; the export version gave a 5-digit code after a win, to carry progress forward. No referees, no rules against fighting, the same rough tackles — none of that changed. Only the flags did.
About this game
Nintendo World Cup is a 1990 association football video game for the famicom, developed by Technōs Japan Corporation, with music by Kazuo Sawa.
Gallery
The Story Behind
Nekketsu Koko Dodgeball Bu: Soccer Hen was released by Technos Japan for the Family Computer in Japan on May 18, 1990, the fourth game in the Kunio-kun series. Later that year, Nintendo and Technos Japan co-produced an export version for the NES, retitled Nintendo World Cup, replacing the delinquent-school setting with international national teams while retaining the same core game engine, graphics, and rough, no-referee ruleset.
Tricks & Tales
The overseas roster is Kunio-kun cosplay: Reppatsu High's delinquents became Team Japan, and the ninja and yakuza squads reappear under other nations' flags with new colors but the same rosters. Story cutscenes and tournament intro demos present in the Japanese version were trimmed for the export release. The two versions also disagree on when they reward you: Japan hands out a 4-digit password after a defeat, so a losing player can keep trying; the export version hands out a 5-digit password after a win, so progress is only banked by winning.
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 Nintendo World Cup copies regularly.
I see three different games called some version of "Nintendo World Cup" or "Dodgeball Club Soccer" — are they the same?
No. There are at least three separate releases: the original Famicom/NES version by Technos Japan (1990), a PC Engine version titled Nekketsu Koko Dodgeball Bu: PC Soccer Hen (published by Hudson, 1992), and a Sega Genesis/Mega Drive version. Each is a distinct release on distinct hardware — confirm the cartridge and console before buying.
Is the Japanese Famicom cartridge the same game as the NES "Nintendo World Cup" I remember?
The core gameplay, engine, and rules are the same, but the Japanese Famicom version (Nekketsu Koko Dodgeball Bu: Soccer Hen) uses delinquent-school teams from the Kunio-kun series rather than national teams, has different menu text and some different graphics, and awards a 4-digit password after a loss rather than a 5-digit password after a win as the NES export version does.
Does this game use battery-backed saves I need to worry about?
No. Both the Japanese and export versions use password-based progress saving rather than battery backup, so there's no risk of a dead internal battery erasing your save. However, used copies without the original manual may lack a place to record passwords, which can be inconvenient if you want to preserve tournament progress.
Before You Buy
Things worth knowing before you buy Nintendo World Cup
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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Rooms this game lives in
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