Game Boy Advance Hidden Gems Worth Hunting Down
We argued in our console collecting guide that if you only collect for one system, a strong case says it should be the Game Boy Advance, and that case rests on the library. But the library has the same problem the SNES has: a first tier so famous (Pokémon, Mario, Metroid, Zelda) that it buries a second tier full of strange, brilliant games nobody bought. The GBA's second tier might be the best of any handheld ever made. It launched into the shadow of the PS2 era, so dozens of superb 2D games arrived to a market whose attention was elsewhere. Their loss. Here's our shortlist, same rules as our SNES gems piece: if it's on this list, there's a real chance you never played it.
Astro Boy: Omega Factor (2003)
Treasure, the studio behind Gunstar Heroes and Ikaruga, co-developed this licensed anime tie-in with Sega's Hitmaker and turned it into one of the best action games on any handheld. The idea started on Hitmaker's side: its president, Mie Kumagai, pushed Sega to secure the Osamu Tezuka rights, then argued for a 2D side-scroller once she learned a parallel PlayStation 2 Astro Boy game would be 3D. The result is a beat-em-up-shooter hybrid with screen-filling bosses, a surprisingly serious story that weaves together decades of Tezuka's universe, and a structural twist midway that recontextualizes the whole game. It reached Japan in December 2003 and North America in August 2004 (credits and release dates). Licensed games are supposed to be shovelware. This one's a masterpiece with Astro Boy on the box.
Ninja Five-O (2003)
A ninja cop with a grappling hook, in a game that plays like Shinobi and Bionic Commando had a child raised by an arcade. Hudson Soft built it, Konami shipped it with essentially zero marketing, it sold nothing, and cartridges became some of the most expensive on the system. IGN has listed it as "Extremely Rare," and by 2013 it was turning up on rundowns of the priciest handheld games (release and rarity history). Collectors knew what the market didn't. The grappling swing is perfect, the level design is dense with hostage-rescue routing, and the whole thing radiates early-2000s confidence. Limited Run Games reissued it in February 2025 for Switch, PS4, PS5 and PC, which took mercy on wallets.
Drill Dozer (2005)
Game Freak, in between Pokémon obligations, made a platformer about a girl in a drilling mech and, at Nintendo's suggestion, put a rumble motor inside the cartridge itself. Drilling through gear-work levels feels fantastic; the drill is movement, weapon and puzzle key at once, with a gear-shift system that rewards timing. Japan got it in September 2005 and North America the following February, by which point everyone had moved to the DS. That timing is the only reason it isn't a household name. Europe never saw a cartridge at all — the region waited a decade for the Wii U Virtual Console to pick it up.
Boktai: The Sun Is in Your Hand (2003)
Hideo Kojima produced and designed this one, a vampire-hunting action game whose cartridge carries a photometric light sensor, so your in-game weapon charges from real sunlight. Playing it meant going outside — design as lifestyle intervention, twenty years before anyone said "touch grass." The stealth-action underneath is Kojima craft, and the whole package remains one of the boldest physical-hardware gimmicks ever shipped on a handheld. Emulators simulate the sensor nowadays, which is convenient and slightly heretical.
Kuru Kuru Kururin (2001)
A launch-window game about guiding a slowly rotating stick through narrow mazes. That's it. That's the game. In building it, Eighting landed on one of the purest precision-under-pressure designs Nintendo ever published, the same white-knuckle, one-more-try loop that powers Celeste's hardest screens, decades early and in pastel colors. It arrived alongside the hardware in Japan in March 2001 and in Europe that June. North America never got a cartridge, and had to wait fifteen years for the Wii U Virtual Console version, then another seven before it turned up in the Switch Online GBA library.
Rhythm Tengoku (2006)
The first Rhythm Heaven game, Japan-only, and still arguably the best. The rhythm games sit in eight sets of six, where every sixth stage is a remix that folds the previous five back together, and clearing stages with a Superb rating earns medals that unlock endless games, rhythm toys and drum lessons (structure and release details). No lanes, no notes scrolling at you, just you internalizing a beat and delivering it. It was the last first-party game released for the GBA, shipped in August 2006 after the DS had already conquered the world, and it plays like a studio making exactly what it wanted with nothing to lose. The import needs no Japanese to enjoy.
Mother 3 (2006)
The least "hidden" game here. Its absence from Western release is one of gaming's most famous grievances, and the situation has not moved: the game turned twenty in April 2026, and the closest it has come to a reissue is the Japanese Switch Online GBA library in 2024, still in Japanese. EarthBound's sequel is a funnier, sadder, more formally daring RPG than almost anything in the genre before or since, with a rhythm-based combo system and an ending that earns its reputation. The community's English fan translation is legendarily polished, and it follows the scene's patch-only convention: the translation team hands out a difference file, never the game, and tells you to track down a legitimate copy first. That convention is what has kept the work quietly tolerated.
Car Battler Joe (2001)
Vehicular combat plus RPG plus garage-building sim, developed by Ancient, Yuzo Koshiro's studio and the house behind Beyond Oasis. Koshiro wrote it a funk score. Victor Interactive published it in Japan in late 2001, and Natsume, the studio that made the GBA Medabots games, handled the North American release the next October (developer and publisher credits). You assemble battle cars from parts, take missions across an open desert, and fight real-time arena duels that feel like a 16-bit Twisted Metal with character progression. Deeply weird, deeply charming, and the kind of mid-budget experiment that doesn't get made anymore.
Availability, which is the whole problem
These eight games sit in three different situations, and the situation matters more than the price. Ninja Five-O and Kuru Kuru Kururin have been rescued outright, one by a 2025 multiplatform reissue and one by Nintendo's own digital services, so there is no reason to hunt a cartridge for either. Drill Dozer sits in between: its Wii U Virtual Console release does carry the cartridge's rumble over, but the game has not appeared on Switch Online. Rhythm Tengoku, Mother 3, Boktai, Astro Boy and Car Battler Joe have no Western reissue at all, and Boktai in particular is close to unreissuable, because the solar sensor is a physical part of the cartridge rather than anything software can carry forward.
If you do go the hardware route, a backlit screen mod (covered in our collecting guide) is the upgrade that changes the most, and flash cartridges are the community standard for running your own dumps and fan translations on original hardware. Prices on the scarce end of this list move fast enough that any figure printed here would be stale within a year, so check recent sold listings rather than trusting a number in an article. What holds steady is the reason to bother: this is 2D design at full maturity, playing to an audience that had already left the room.