These Vintage Games Cost an Arm and a Leg
When Nintendo released the Game Boy back in 1989, nobody expected a handheld with a grainy green screen to become one of the most beloved consoles in gaming history. Yet decades later, that's exactly what happened. Nostalgia has turned into a thriving collector's market, and some of the system's most obscure, oddly licensed, or barely distributed titles now sell for jaw-dropping amounts. Whether it's a vegetable-themed puzzle game or a Japan-only import nobody remembers (except for the real fans), these 20 cartridges prove that rarity, not just popularity, drives real value on the secondhand market.
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1. Amazing Tater
Atlus released this puzzle game in Japan back in 1991 before bringing it to North America the following year, and it stars a wandering potato named Spud who pushes blocks around tight, geometric mazes to clear each stage. The vegetable-kingdom branding didn't exactly fly off store shelves at the time, so Atlus printed only a small batch of English-language cartridges, and that scarcity has turned an overlooked puzzler into the most valuable Game Boy game on record. Loose carts alone now sell for several hundred dollars, complete-in-box copies have climbed toward the $7,000 mark, and a handful of sealed auctions have reportedly cleared $10,000.
2. Spud’s Adventure
This 1991 action-RPG hybrid, the middle chapter of Atlus' so-called Puzzle Boy trilogy, casts you as Spud the potato, who has to climb a hostile tower and defeat a cast of villainous vegetables to rescue Princess Mato. Atlus kept the North American print run tiny, just as it did with Amazing Tater, which means original copies never had much chance of flooding the secondhand market. A loose cartridge will run you around $600 today, and a complete-in-box set is typically listed at about $2,500, if not more.
3. Toxic Crusaders
This 1992 platformer adapts the short-lived animated series that spun out of the R-rated 1984 film The Toxic Avenger, letting you guide heroes like Toxie, Head-Banger, and Junkyard against a four-armed villain named Dr. Killemoff. The cartoon's run didn't last long, and that limited cultural footprint translated directly into a small print run for the cartridge itself. Used copies tend to sell for a little over $300, complete-in-box sets have reached nearly $2,000, and brand-new sealed copies have been known to top around $4,000.
4. Sumo Fighter
Nintendo brought this sumo-themed action platformer to North America in 1993, two years after its Japanese debut, and it follows a wrestler named Bontaro Heiseiyama as he fights his way toward Kyoto to rescue his friend Kayo. Between slap attacks and a cool quake move that knocks all enemies off the screen, the combat held up well for its era, even if most American kids never got the chance to try it. That limited stateside release now commands roughly $200 for a used cartridge, close to $3,000 for a complete set, and well over $5,000 for a brand-new copy.
5. Kid Dracula
Konami never officially brought this comical platformer to North America, so anyone outside Japan who wanted to control a kid-sized version of Dracula's son battling the villain Galamoth had to import a copy. The chibi art style and lighthearted tone set it apart from the rest of the Castlevania series, and several of its characters later popped up in later entries like Symphony of the Night. What once sold for a couple hundred dollars has climbed steadily over the years, with complete copies now regularly changing hands for well over a thousand dollars on import and auction sites.
6. Mega Man V
Minakuchi Engineering spent extra development time on this fifth handheld Mega Man installment, swapping out the usual Robot Masters for a new set of villains called the Stardroids. Many longtime fans consider it the strongest of the Game Boy Mega Man games, and that reputation has only pushed demand higher among collectors hunting for an original cartridge. A used copy typically goes for around $280, a complete-in-box set runs about $1,400, and sealed copies have reportedly sold for thousands more, though a 2014 3DS re-release offers a far cheaper way to play.
7. Knight Quest
Taito and developer Lenar released this RPG in 1992, and while its gameplay held its own, the Game Boy's tiny screen made the dialogue and stat menus a real strain to read. The game also drained four AA batteries faster than almost anything else in the handheld's library, which made long dungeon-crawling sessions a bit of a gamble. Today, a loose copy runs about $300, a complete set approaches $960, and a sealed new copy has climbed past $2,000.
8. Metal Masters
Before it ever reached the Game Boy in 1993, this fighting game started life on the Atari ST, Commodore Amiga, and IBM PC, letting players earn credits to upgrade their robot's arms, legs, and overall strength between matches. Your computer-controlled rivals, including the villainous Baron Harkan, could upgrade their own machines just as easily, which kept every battle feeling unpredictable. The Game Boy port saw such limited distribution that a loose cartridge now sells for around $50, a complete set fetches roughly $1,250, and a new copy can climb past $2,800.
9. NIV Bible and the 20 Lost Levels of Joshua
Wisdom Tree built its reputation on unlicensed, Bible-themed cartridges sold through Christian bookstores, and this 1996 release packed the full NIV translation alongside twenty additional platformer levels built around the story of Joshua and the Battle of Jericho. Nintendo maintained a strict policy against unlicensed titles but never pursued legal action against Wisdom Tree, which allowed the cartridge to slip onto store shelves nationwide without much fanfare. Collectors can expect to pay roughly $230 for a loose copy, close to $750 for a complete set, and upward of $1,700 for one still sealed in shrink wrap.
10. Sword of Hope II
Kemco released this 1996 sequel late in the Game Boy’s life, continuing the first-person fantasy RPG style of the original while giving players another dungeon-crawling adventure built around menus, monsters, and story progression. It never had the name recognition of Final Fantasy Adventure or the Pokémon games that were about to dominate the handheld, which helped keep original copies from circulating in huge numbers. Loose cartridges now tend to sell around $150 while complete-in-box copies run about $700 or more, though (thankfully) sealed copies aren't as expensive and sit around the $300 if you're lucky.
11. Rolan’s Curse 2
Sammy followed up Rolan’s Curse with this 1992 action-RPG sequel, sending players back into a top-down fantasy adventure filled with monsters, recruitable allies, and real-time combat. The original game is still fairly affordable, but the sequel is a very different story, since far fewer copies seem to surface on the collector market today. Loose cartridges regularly sell for around $200, complete copies can cost $1,000, and brand new copies will set you back roughly $2,300.
12. Castlevania Legends
This 1997 Game Boy exclusive introduced Sonia Belmont as the first female vampire hunter in the main Castlevania lineage, sending her through a shorter, more streamlined adventure than most of her Belmont relatives. Series producer Koji Igarashi later decided the story didn't fit the established timeline and stripped it of its canonical status, which only added to its reputation as the series' odd one out. You can pick up a loose cartridge for around $150, while complete-in-box copies approach $800 and new sealed copies have reached nearly $2,000.
13. F1 Pole Position
Ubisoft localized this Formula 1 racer from a Japanese title called Nakajima Satoru F-1 Hero GB '92 and gave it minimal marketing investment, which led to an unusually small North American print run. The North American box used the same uncropped racing photo as the SNES version, but designers filled the leftover space with solid black panels instead of redesigning the artwork, creating a so-called Black Label variant that collectors specifically hunt for today. PAL copies remain easy to find and inexpensive, while the rare North American Black Label box now pushes complete sets well past $1,000.
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14. Fish Dude
SOFEL released this survival game in Japan in 1990, months before Sonic the Hedgehog turned animal mascots into a worldwide phenomenon, putting you in control of a fish trying to eat smaller prey while dodging bigger predators. You can even leap briefly out of the water to dodge danger below the surface, though doing so risks getting snatched by a hungry bird instead. A loose cartridge costs about $80, a complete set runs near $600, and a sealed new copy has climbed past $1,300.
15. Avenging Spirit
Jaleco's 1992 release puts you in control of a ghost who can possess various enemies to avenge his own death and rescue his kidnapped girlfriend from a gang of mobsters. The North American box art went with a gangster wielding a Tommy Gun, while the Japanese and European versions opted for a far cuter ghost mascot, leaving plenty of shoppers confused about what kind of game they were actually buying. Complete-in-box copies once sold for thousands of dollars before settling closer to $400 today, and loose cartridges typically run around $170, while new copies are even cheaper at about $110.
16. Battletoads & Double Dragon
Rare's hard-hitting Battletoads teamed up with the Lee brothers from Double Dragon for this 1993 crossover, where Rash, Zitz, Pimple, Jimmy, and Billy take on the Dark Queen and her Shadow Boss together. The Game Boy version ended up as the weakest of the various console ports since its small screen blurred the chaotic fight scenes, and that weaker reception led to a smaller print run than its Genesis and NES counterparts. Loose carts still go for under $90, but complete-in-box copies now sell for close to $1,000, and brand-new sealed versions have climbed past $2,200.
17. Mega Man IV
The Game Boy version of Mega Man IV ditches the NES game's villain Dr. Cossack in favor of a new foe named Ballade, mixing Robot Masters from both Mega Man IV and Mega Man V into a single adventure exclusive to the handheld. An ultra-rare sealed NES copy of Mega Man sold for a whopping $75,000 in 2019, but thankfully for Mega Man IV, a loose cartridge costs around $120, a complete set runs close to $1,600, and a sealed copy tops $3,700. Still not cheap by any means, but at least not nearly eighty grand.
18. Ninja Boy 2
Culture Brain's 1991 sequel sends heroes Ryu and Jack into outer space to battle aliens, continuing the action-RPG style that made the original Ninja Boy a minor cult favorite. North American complete sets once spiked to nearly $5,000 before the market suddenly cooled and those same prices plummeted. That volatility means now a loose copy runs about $60, with complete sets sitting around $200 and new sealed copies reaching close to $400.
19. Zool: Ninja of the Nth Dimension
Gremlin Graphics created this alien ninja gremlin to compete with the wave of fast-paced mascot platformers that followed in Sonic's wake, and the character ended up ported to nearly every major system of the early 1990s, from the SNES and Genesis to the Amiga CD32. The Game Boy's small, blurry screen wasn't built for the rapid action Zool demanded, so this particular port sold poorly and ended up as the rarest version among all those releases. Loose cartridges sell for around $50, complete sets approach $900, and new sealed copies have climbed near $2,000.
20. The Flintstones: King Rock Treasure Island
A wave of renewed Flintstones popularity, fueled by the live-action movie and steady Cartoon Network reruns, helped Taito's 1993 platformer find an audience as Fred Flintstone hunts for treasure across seven levels. Loose cartridges remain fairly easy to track down for around $50, but complete and new copies tell a very different story, since collectors have pushed those prices into the high hundreds and even close to $2,000.
