 In the original Japanese version of Ice Climber, instead of the fuzzy  creatures (nicknamed Mr Fuzzy by many) that fill in the destroyed blocks,  there were seals. They may have replaced because around the time it was  released, seals were being treated awfully, so Nintendo may not have wanted  them to be associated with seal clubbers. Thus, that change remained in Super  Smash Bros Melee: The Japanese got seals, and everyone else got Mr Fuzzy.