(edit) having a problem with dark yojimbo i teleport to back of cave an get him to appear i kill him then i kill him again ect (im supposed to kill him 5 times right?) i can only find 4 fights with him an ones at the entrance to cave killed him 8 times now on two attempts at it an cant seem to find mr yojimbo number 5...
On the first fight, beat Yojimbo. When the summoner runs off, DON'T teleport to the cave entrance, your fight tally will be reset. Instead, take advantage of the nearby save sphere, and FOLLOW the summoner. You'll keep encountering him and eventually you'll beat Yojimbo 5 times.

Remember, don't teleport and don't reload once you've saved and you should, in theory, be able to beat him.