They are too young for metal gear and ocarina of time (can't read, my oldest is learning right now). CTR could be an option and even crash bash, but those are

They are too young for metal gear and ocarina of time (can't read, my oldest is learning right now). CTR could be an option and even crash bash, but those are "obvious" in the sense that are couch coop/vs games that aren't present in modern times. I haven't played Kirby Super Star, they did love the modern Kirby Star Allies (but not so much the forgotten land).