In the early 1980s, Nintendo rose to prominence with the NES, dominating the gaming industry with cartridges.Nintendo's fateful decision to end partnership with Sony on a CD-ROM project led to the birth of the Sony PlayStation.Sony's pivot from a scorned partner to a market leader reshaped the gaming industry with the launch of PlayStation in 1994.The legacy of Nintendo's silent betrayal shaped the gaming landscape, leading to Sony's success and Nintendo's rivalry.