WonderSwan

The WonderSwan is a handheld game console released in Japan by Bandai. Developed in collaboration with Gunpei Yokoi's company Koto Laboratory, it was the final piece of hardware Yokoi worked on before his death in 1997. Launched in Japan in March 1999 during the sixth generation of video game consoles, the WonderSwan was followed by two upgraded models, the WonderSwan Color and SwanCrystal, before Bandai discontinued the line in 2003. Throughout its lifespan, no version of the WonderSwan was officially released outside Japan. Powered by a 16-bit processor, the WonderSwan was designed as both a more powerful and affordable alternative to its 8-bit competitors, Nintendo's Game Boy Color and SNK's Neo Geo Pocket Color, while offering notably long battery life from a single AA battery. Later iterations improved the handheld’s display, introducing color for enhanced visual quality. One of its distinguishing features was its dual-orientation design, allowing gameplay in both vertical and horizontal modes. The WonderSwan also cultivated a unique library, featuring numerous first-party titles based on licensed anime properties and strong third-party support from developers such as Squaresoft, Namco, Capcom and Banpresto. In total, all variations of the WonderSwan combined to sell an estimated 3.5 million units, capturing up to 8% of the Japanese handheld gaming market at its peak before being overshadowed by Nintendo's Game Boy Advance. In retrospect, despite its limited commercial success, the WonderSwan is often praised for its innovation and potential, as well as its brief yet noteworthy challenge to Nintendo's dominance in the handheld gaming space.