The party reaches the end of the world and learns who built it. The Mega Drive could hold a story that dark.
Phantasy Star II was released in March 1989 — a sequel to the 1987 Sega Master System original, set a thousand years later in the Algo Star System. Rolf and his party investigated environmental catastrophe on the planet Mota, pursued the cause across two worlds, and arrived at a revelation about the nature of their civilization that was unusual for games of the era. The ending — which disclosed the origin and purpose of the forces controlling the star system — was genuinely bleak for 1989 console fiction. The game's text-heavy narrative required a strategy guide sold separately, and Sega bundled both together in North America. Phantasy Star II sold approximately 200,000 copies and established science fantasy as a viable JRPG setting.
About this game
Phantasy Star II is the 1989 Mega Drive RPG developed by Sega — the sequel to the 1987 Master System original — and one of the earliest RPGs released on the platform. Set one thousand years after the original on the planet Mota, the game follows Rolf, a government agent investigating why the planet's computer system MOTHER BRAIN is malfunctioning and causing ecosystems to collapse. The game shipped on a 6-megabit ROM cartridge — the first in the Mega Drive's history, requiring a price point that made it among the most expensive games of its era. The party-based overhead-view combat system, elaborate character dialogue, and the game's genuinely dark science fiction narrative made it a landmark entry in console RPG history.
Key Features
Party-based combat in overhead-view dungeons — up to 4 party members from 8 total characters. Science fiction setting: Algo solar system, spaceships, bio-monsters, government systems. 6-megabit ROM — the first 6Mbit Mega Drive cartridge, enabling significantly more data than predecessors. MOTHER BRAIN as a central antagonistic system — a narrative device ahead of its era. 80+ hours of content for a complete playthrough.
Gallery
The Story Behind
Phantasy Star II shipped in March 1989 — the same year as the Mega Drive's Japanese launch — and its 6Mbit cartridge pushed the cost to levels that made it one of the most expensive titles in the library. The sci-fi RPG setting was unusual: console RPGs of the era predominantly used fantasy. The game's narrative — an artificial system that was meant to protect life has begun to destroy it — carried thematic weight that most games of its time did not attempt. It established Phantasy Star as a serious RPG series equal to the Nintendo-published Dragon Quest and Final Fantasy franchises.
Tricks & Tales
Phantasy Star II's 6-megabit cartridge was so expensive to produce that the retail price at launch in Japan exceeded ¥8,000 — extremely high for 1989. The game came packaged with a hint book in some regions because the dungeons were considered nearly unsolvable without guidance. Composer Tokuhiko Uwabo credited himself only as 'BO' in the game — a practice he continued across his Sega career. The game's antagonist MOTHER BRAIN predates the similar Nintendo villain by several years.
Collector's Guide
Region & Compatibility
The Japanese Mega Drive and the North American Genesis use different cartridge shapes — Japanese carts have a notch on the side that fits a locking arm inside the JP console, while Genesis carts are slightly narrower with a different profile. The two cartridges are physically incompatible without an adapter. European PAL carts share the same shape as the Genesis. Beyond physical shape, some games from 1992 onward also check a software region register and will lock out foreign consoles even with an adapter. A region converter cartridge or a mod chip addresses both the physical and software locks.
Maintenance Tips
The cartridge edge connector — both on the console and the cartridge itself — is the most common source of read errors on a Mega Drive. Clean the cartridge contacts with a cotton swab lightly dampened with 90% or higher isopropyl alcohol, and let them dry completely before inserting. Avoid blowing into the slot; moisture accelerates pin corrosion. For persistent problems, the console's cartridge slot pins can be gently cleaned the same way using a thin swab.
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 Phantasy Star II copies regularly.
Will a Japanese Mega Drive cartridge work on a North American Sega Genesis or European Mega Drive?
Not directly. Japanese Mega Drive and North American Genesis cartridges have different physical notch positions, preventing direct insertion without a pin adapter. The console also enforces regional settings in hardware — a Japanese cartridge on a Western console will often lock up or refuse to boot without modification. Playing Japanese Mega Drive software is most reliably done on a Japanese Mega Drive. Region adapters and mod chips exist for those wishing to run imports on Western hardware.
How should I clean a Mega Drive cartridge?
Apply 90% or higher isopropyl alcohol to a cotton swab and wipe the gold-plated edge contacts on the base of the cartridge. Most Mega Drive cartridges use standard Phillips screws if the shell needs opening for deeper cleaning. Clean the console's slot separately — oxidized slot contacts are a common cause of boot failure on Mega Drive hardware.
Before You Buy
Things worth knowing before you buy Phantasy Star II
A short checklist for buying a used Mega Drive 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 Mega Drive cartridge; it differs in shape and region from the North American Genesis and may need a matching console or adapter.
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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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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