At least in Tales of Link, Jay looks like a girl. I searched google for an image. (there are two images in this tweet. I searched google for the image on the right. https://twitter.com/mightyfruitcake/status/1148337895838818304)
I know nothing about Mega Man, either. except that Mega Man can use weapons from defeated robot masters and some songs with lyrics.
At least in Tales of Link, Jay looks like a girl. I searched google for an image. (there are two images in this tweet. I searched google for the image on the right. https://twitter.com/mightyfruitcake/status/1148337895838818304)