Hmm... i remembered i beaten both weapons... but i'm not sure in which order :P ... but well... you could use a few smoke bombs to escape, if things get too spicy (you'll then see Mr.Ruby standing up on the quicksand right after that! heeheehee) well... lvl 99 would help.. training at the underwater thing with those Unknown1/2/3s would be good exp.. but its more challenging to fight at lower levels.. well.. keep trying! i vaguely remember something about Ultima, hero's drink, Omnislash, Cid's Highwind and All Creation.. but well.. it might be time i played the game again