I just found another spot that if you edit the text, the game screws up. After beating the tentacles in the Figaro engine room, and not only does Edgar not say his line,
"Edgar: What're ya waiting for, Celes?
Give me a hand!!
But after the battle, one tentacle NPC is still hanging around, and worst of all the screen goes into permanent screen shaking L1 tile earthquake mode for the rest of the game. Every single map, except the overworld. The solution? Re-patching mblock128's Edgar Reveal patch. This one was easy to figure out since it screws up right where that patch does it's "magic" =p Just like his other one. So after re-patching, everything is good again.
Watch the bug in action here: http://www.youtube.com/watch?v=OHNuI9hnzrU
However for some reason Youtube makes it look normal most of the time, but you can still see it happening.