Ah, the mud imp. I remember my first time through the game he was one of the tough ones (and then I was trounced by Big Doublez G). Of course, I was something like 9 then, and video games as a whole felt harder. Now I have no trouble in Chrono Trigger, though I wouldn't mind trying a low level run once the DS version comes out. i just feel so weak running from battles...
Anyways... you know what game is still pretty hard? Ff4. I've been playing through the DS version, and the last dungeon is hellish.