The WonderSwan was the first handheld game console to feature a vertically-oriented screen, a design choice that proved surprisingly popular in Japan. elaborate
The Philips CD-i console was famously used to produce the interactive *Hotel Mario* game, starring the Super Mario Bros. It's often cited as one of the worst video games ever made. elaborate
The Game Boy Advance's cartridge slot is backwards compatible with Game Boy and Game Boy Color cartridges. elaborate
The Sega Saturn's controller had two distinct parts that could be detached and used independently, a design choice that proved confusing to many consumers. elaborate
The PlayStation 4's original model had a problem with its power supply unit, which sometimes resulted in a loud, high-pitched whine. elaborate
The Atari Lynx had a backlit screen, making it the first handheld gaming console with that feature. elaborate