5. Dungeon Man
What is a man? A miserable little pile of secrets! Apparently, they are also dungeons you can explore and even briefly join your party, at least in Earthbound.
Ever wanted to see two children go on a drug trip in a strange city? Well, that basically happens when an evil Mani Mani statue sends Ness and Jeff to an alternate version of Fourside, until they beat said statue in battle.