i had the same proberlem with malboro's, and in the sunken cave, Tonsberry. U have one of 2 choices, 1: go do sumfink else, and come back to it, u wont b as frustrated cause uve had a break
2: complain to a sibling whos watching you while looking, hand the controler to them, next fiend they run into is the one ur looking for...hey, works for me!