the stage has things not seen elsewhere and you have to get eaten by the "Zone Eater" into kefka

kefka was cids first magi-tek knight and it drove him mad but he was still infused with another being(esper) which probabbly took control cause he was the first magi-tek warrior guy(FailArmy); then esper was obtained as a relic from the war of the magi in magicite form still carrying a grudge and bonding with kefkas damaged persona became something else.. gogo is kefa before the experiment you can see face paint on the eyes in some drawings

Celes was cids success and the closet to terra he could get

gesthal knew celes was superior and believed until the old war esper infused kefa showed more prowess in being effective and gained his attention

explains kefkas obsession with power two since the magi where they turned odin too stone in that game

lol makes me want to fire rpg maker up and load some spirtes from ff3 or 6

the magi are depicted with ghost spirtes in game so kefka being possessed makes sense and gogo hiding out with everyone after the guy that ruined their lives

perhaps not even human at all

Gogo just dimension hopped from FFV, so he/she couldn't be Kefka. This is the same way that Biggs/Wedge ended up in Chrono Trigger and Cloud/Aerith ended up in Ivalice.

https://www.youtube.com/watch?v=0RG9GAaO77M gogo in ffv talks about turning odin into stone doesnt make sense unless you play 6 and find odin