Hmm...

I once encountered a particularly strange glitch playing FFV. For no reason (there was nothing, such as Relm's Sketch bug, to induce it), I went into battle to find the colors horribly off, the screen upside down, a counter marking down the seconds in a non-timed fight, and fighting (discolored, and upside down) enemies that did not correspond to the background location of the battle, which itself did not correspond to where the random encounter took place. The damage dealt by both my characters and the enemies was completely random, and the enemies survived far more damage than their HP allowed for.