The WonderSwan was Bandai's entrant into the handheld console market in Japan and the final brainchild of Gunpei Yokoi, father of the Game Boy, released posthumously in 1999. Visually, it looks like somebody crossed an iMac of the era (Bondi Blue!) with a Game Boy Advance, and had a variety of system colors available.
Yokoi had left Nintendo in 1996 and wanted to do something different in the game business. After starting Koto Laboratory he was quickly contacted by Bandai, who sought his help to make hardware to enter the handheld gaming business. Though Yokoi died in 1997 before the WonderSwan was finished, he laid the groundwork for the new system and imbued it with his successful Game Boy design paradigm of small size, inexpensive cost and high battery life; the original model lasted 40 hours off a single AA battery for the shockingly low price of ¥4800 (the equivalent of $42 at the time).
The initial WonderSwan was monochrome like the original Game Boy, though it displayed in eight shades of gray compared to the Game Boy's four to allow more detail. The first model ended up selling well even when going up against the Game Boy Color, but Bandai still felt pressured to release a revision a year into the system's life. The aptly-named WonderSwan Color isn't a huge leap outside of adding color, but the original model was already more powerful than the GBC and didn't really need more horsepower. The WonderSwan Color did have half the battery life of the original, though 20 hours off of one AA battery meant it was still appealing and it also sold well. The system got one last Product Facelift with the SwanCrystal in 2002, which employs a TFT screen in place of the previous models' LCD screen. This version didn't sell particularly well, especially since the Game Boy Advance was already out by its release.
Similar to the Atari Lynx, the WonderSwan has extra buttons that allow it to be played in both landscape and portrait orientations. While the Lynx employed extra face buttons to achieve this, the WonderSwan went with extra directional buttons, giving it far more flexibility with portrait mode due to the D-pad being fractured instead of solid (so more like a PlayStation DualShock D-pad and less like the D-pads found on Nintendo's various controllers) and generally being more comfortable to hold.
Unlike previous non-Nintendo handhelds, the WonderSwan was able to fill out its library with a good selection of unique games. Bandai already owned Digimon — a series suited for handheld gaming — and used their connections to Banpresto to secure a number of lucrative anime licenses. The system also received decent third-party support from Capcom, Namco (whom Bandai would eventually merge with), and Squaresoft (who at the time were fresh off their bridge-burning with Nintendo over the Nintendo 64, which extended into a refusal to contribute to the Game Boy Color's library). The WonderSwan notably got a few Mega Man games and the first remakes of Final Fantasy games.
While the WonderSwan never released outside of Japan, it is known that Bandai signed a deal with Mattel in 2000 to distribute it in North America. The deal fell apart with no official explanation ever given, though it's very likely that Mattel saw the upcoming release of the Game Boy Advance, read the writing on the wall, and pulled out.
The WonderSwan was a decent success, selling about 3.5 million units over its lifetime and holding about 8% of Japan's handheld market share at its peak. It's believed that the initial success of the WonderSwan Color in particular gave Nintendo enough of a fright to release the Game Boy Advance so quickly on the heels of the Game Boy Color. Whether that's true or not, the GBA did succeed at killing the WonderSwan by reasserting Nintendo's dominance in the handheld space. The system was officially discontinued in 2003 when it was clear that there was no way it could recover, though many of its games lived on by being ported to the GBA.
Games for the WonderSwan and WonderSwan Color:
- Arc the Lad
- beatmania for WonderSwan
- Cho Aniki: Otoko no Tamafuda
- Chocobo no Fushigina Dungeon
- Clock Tower (1995)
- Densha De Go
- Digimon series:
- Final Fantasy series:
- Fire Pro Wrestling for WonderSwan
- Front Mission
- Golden Axe
- Guilty Gear Petit
- Judgement Silversword
- Cardinal Sins, a freeware spinoff of JSS
- Klonoa: Moonlight Museum
- Langrisser Millennium: The Last Century
- Magical Drop for WonderSwan
- Makaimura for WonderSwan
- Medarot: Perfect Edition
- Mega Man series:
- Mr. Driller
- Nobunaga's Ambition
- Princess Maker: Yumemiru Yousei
- Puyo Puyo Tsu
- Rainbow Islands: Putty's Party
- Riviera: The Promised Land
- SaGa series:
- Saint Seiya Ougon Densetsu Hen: Perfect Edition
- SD Gundam G Generation series:
- SD Gundam G Generation: Gather Beat
- SD Gundam G Generation: Gather Beat 2
- SD Gundam G Generation: Monoeye Gundams
- Space Invaders
- Super Gem Fighter Mini Mix
- Super Robot Wars series: