Bandai WonderSwan

The WonderSwan carries a poignant distinction: it grew from the final handheld concept of Gunpei Yokoi, the father of the Game Boy, who left Nintendo to work with the company Koto before his death in 1997. Manufactured and sold by Bandai beginning in 1999, the system embodied Yokoi's lifelong philosophy of clever, efficient, cost-conscious design taken to an extreme, and for a moment it did something almost no rival managed, it took real market share from Nintendo on home turf.

The machine's defining virtue was staggering battery life. Where color rivals guzzled cells, the original monochrome WonderSwan ran for dozens of hours on a single AA battery, a feat that felt almost magical. It was small, light, and cheap, and it carried a wonderfully odd design quirk, two sets of face buttons that let games be played in both horizontal and vertical orientations, a flexibility that enabled unusual layouts and puzzle designs.

Crucially, Bandai landed a coup: it secured Final Fantasy. Square, then feuding with Nintendo, brought enhanced remakes of the early Final Fantasy games to the color-capable WonderSwan Color, and that endorsement, along with tie-ins to Bandai's Gundam and Digimon empires and quirky originals, gave the platform genuine momentum in Japan.

It was, however, an almost entirely Japanese story. The WonderSwan and its successors, the WonderSwan Color and the beautifully screened SwanCrystal, sold roughly 3.5 million units, enough to become the clear number two behind the Game Boy line in Japan but never enough to threaten it globally. The system never received a meaningful Western release, and the arrival of the Game Boy Advance in 2001 gradually squeezed it out.

The WonderSwan's legacy is that of the most successful challenger to Nintendo's handheld reign in its home market, a fitting, bittersweet coda to Yokoi's career. Cherished by importers and retro enthusiasts, it stands as proof that his design gospel of doing more with less could still shake the empire he had built.