The two most expensive games on the original Game Boy both star a potato, and neither one sold well when it was new. Spud's Adventure was not popular at all, so it probably had a tiny print run, while Amazing Tater's vegetable branding did nothing to move carts off store shelves. Today a loose cartridge of either one sells for over $500.
Every price below is a real eBay sale made between March 2024 and June 2026, never an asking price. For each game we took the sales of loose cartridges (the cart alone, no box) from its latest year of sales, or its latest two years when it sold too seldom for one, and used the middle price, so one wild auction can't push a game up the list. You only need the cartridge to play, so the loose price sets the order. Boxed prices only show up where enough boxed copies sold to mean something.
10. Castlevania Legends (1997)
Loose carts of Castlevania Legends sold for a typical $162 across 30 sales between January and June 2026, and boxed copies went for a typical $800 across 11 sales. You play Sonia Belmont, the very first in the line of vampire hunting Belmonts, and you whip your way through six stages until Count Dracula himself is waiting at the end.
The price is a little awkward, because the series would rather forget the game. Producer Koji Igarashi considers both the game and Sonia non-canon, since they conflict with the plot of the main games, and he once admitted that "Legends remains something of an embarrassment for the series." It also landed near the bottom of a fan poll of the best Castlevania games, yet it still has a group of devoted fans. (Imagine your own family calling you a continuity error. Rough.)
Luckily, this is the easy one to play. Castlevania Legends got its first official re-release on Nintendo Classics, the retro service for the Nintendo Switch, on October 31, 2023. If you do want a cartridge, the Japanese one saves your game, while the English versions make you write down passwords.
9. Rolan's Curse 2 (1992)
Loose carts of Rolan's Curse 2 sold for a typical $165 across 29 sales between August 2024 and July 2025. King Barius is back for revenge, so you gather a band of worthy companions and go looking for treasure and magic before the final fight with the monarch of evil.
It never made much noise, and that is part of why it costs this much now. It has long sat on a list of the best undiscovered Game Boy games, right next to the first Rolan's Curse, and an older price guide already put loose and boxed copies somewhere between $43 and $228.
8. Avenging Spirit (1992)
Loose carts of Avenging Spirit sold for a typical $169 across 16 sales between September 2024 and July 2025. You play a ghost who possesses the enemies around you, each with different strengths, to avenge your own death and rescue your girlfriend.
It came from a Jaleco arcade game, and it didn't do well at retail, since the confusing branding and box art probably didn't help. Before a hidden gems guide picked it up in 2009, a cart sold for $10 or less. On top of that, a wave of bootleg cartridges now copies its art with a ghostly Goomba edited over the American box, so check what you're buying.
Here, though, is the good news: Limited Run Games released a new cartridge for the original Game Boy in 2022. The Game Boy version also came out worldwide on the 3DS Virtual Console on August 11, 2011, so anyone who grabbed it there already owns it.
7. Kid Dracula (1993)
Loose carts of Kid Dracula sold for a typical $181 across 49 sales between March 2025 and March 2026, and the three boxed copies in that stretch went for a typical $1,451. It is a Castlevania spinoff and a sequel to a 1990 Famicom game of the same name, and it plays so much like a reimagining of that game that fans have long treated it as a parody of the series.
Kid Dracula has forgotten most of his powers while the evil Garamoth tries to take over his castle, so across eight levels he slowly remembers them. By the end he can walk on the ceiling, fly for a moment, hide under an umbrella and drop bombs, which is four more life skills than I have. It went under the mainstream radar when it was new, which is how it ended up on a list of hidden gems, and the carts have climbed ever since.
There is no cheap way to play this exact cartridge, but the 1990 Famicom original got its first international release in the Castlevania Anniversary Collection in 2019, on the PlayStation 4, Xbox One, Switch and PC.
6. F1 Pole Position (1993)
Loose carts of F1 Pole Position sold for a typical $190 across five sales between February and September 2025. That makes it the oddest entry here, because it isn't a cult favorite at all. It is a racing game sharing its name and artwork with the Super Nintendo game, and Ubisoft simply didn't print many copies.
Since Ubisoft had little invested in it, the company waited to see how it would do and released a very limited number of North American carts. Those carts also look strange, with half of the label left solid black so the uncropped racing photo from the Super Nintendo box could fit. Most collectors never caught on to that black label for a long time.
The fix is easy, though. Far more copies came out in PAL regions, and those are much more plentiful and affordable, so a European cart gets you the same race for less.
5. Mega Man V (1994)
Loose carts of Mega Man V sold for a typical $230 across 59 sales between February and December 2025, and boxed copies went for a typical $1,400 across five sales. It breaks the habit of the earlier Game Boy games, which reused robot masters from the NES. This time you fight all new bosses, the Stardroids, named after the planets.
It also took longer to make than the four Game Boy games before it, and it shows. Dr. Light bolts a Mega Arm onto the hero that fires his fist like a rocket punch, and he builds a robot named Tango to help out, although Tango is not quite as helpful. One Stardroid, Saturn, even hates video games. It also uses the Super Game Boy features, so it gets a splash of color on a TV.
You don't need the cart, though. Mega Man V joined Nintendo Classics on the Switch with the other Game Boy Mega Man games on June 7, 2024, and it was on the 3DS Virtual Console in North America from May 22, 2014.
4. Sumo Fighter (1993)
Loose carts of Sumo Fighter sold for a typical $280 across 19 sales between August 2024 and August 2025. It reached North America in 1993, two years after its Japanese release as Sumo Fighter: Toukaidou Basho, and it took sumo somewhere new. Instead of a one on one fighting game, it is a platformer starring a sumo wrestler, Bontaro Heiseiyama, who walks the old Tokaido road to rescue his lover Kayo from ninjas.
What makes it stand out are the light RPG elements, since you build up Bontaro's strength as you go, mostly through hidden minigames of thumb wrestling, arm wrestling and paper wrestling. Its large sprites also look very nice next to other Game Boy platformers. Even so, it is mostly remembered today as one of the most valuable Game Boy games. Shouldn't a game where you eat rice to get stronger be known for that instead?
3. Toxic Crusaders (1992)
Loose carts of Toxic Crusaders sold for a typical $330 across 15 sales between July 2025 and May 2026. It is a side-scrolling platformer based on the Toxic Crusaders cartoon, an environmentally themed kids' show that came, somehow, from a strongly R-rated film. Between levels you pick your Crusader from Toxie, No-Zone, Major Disaster, Headbanger and Junkyard, and everyone has unlimited ammo.
The show didn't last long, but it got games on the NES and the Sega Genesis too, and the Game Boy one is the hardest to find by far. That is a recent problem, since bare carts commonly sold in the $20 range as recently as 2016.
If you mostly want to play as Toxie, the NES and Genesis games are the easier carts to find, although they are different games, not ports of this one.
2. Amazing Tater (1991)
Loose carts of Amazing Tater sold for a typical $525 across 11 sales between March 2024 and December 2025, a two year stretch because it sells so seldom. Atlus made it as the true sequel to Kwirk, which was Puzzle Boy in Japan, yet the English release doesn't even mention the earlier game. You guide a small potato to the exit of each level, pushing crates into holes and squeezing past spinning doors.
Atlus tends to make cult classics and release them in small numbers, and the vegetable branding didn't help it leave store shelves. As a result, bare carts sold for $15 or less until 2012, when prices jumped and kept climbing.
If it's the puzzles you're after, this one is more of the same push blocks and flip the rotating walls action as its Puzzle Boy predecessors, so Kwirk, the first game in the series, scratches the same itch.
1. Spud's Adventure (1991)
Loose carts of Spud's Adventure sold for a typical $542 across 12 sales between April 2025 and January 2026. It is the middle game of the Puzzle Boy trilogy, and Atlus turned the puzzle series into an overhead action RPG for it. Spud the Wanderer climbs the Far Tower to save Princess Mato from a stag beetle that stands in for the Devil.
As Spud kills enemies, he earns experience, and every 100 points gives him a new level and more health. The game was not popular at all, so it probably had an extremely low print run, and that is the whole reason it tops this list. The hero's backstory is the funniest part: when Acclaim brought the first game to the US, it turned Spud into a tomato named Kwirk, and Atlus kept Spud a potato in every game after.
