11-28-2009, 11:50 AM
I think it's be argued enough that Geno belongs to Square as seen in the credits of Mario & Luigi Superstar Saga. And I doubt when he's been used really matters. There could be a character that I don't know of that hasn't been used in 15 years and never made an appearance besides that one game they were in but that character would still belong to those who made him/her/it.