Fun fact: There used to be an experimental subgenre of metalcore that infused elements of 8-bit or chiptune music.. but there was never a name for it. One band called themselves a "nintendo-core band" as a joke when an interviewer asked them what they classify themselves as. The name stuck and everyone called the sub-genre just that, and as they were the guys who gave it a name, people started putting them at forefront of it. Fans of nintendo-core always referenced them as the go-to band for that subgenre of metal. The band then regretted it later and started hating the term lol
Here's "Murder" by HORSE the band if you wanna get into nintendo-core xD