where the hammer dudes moved. theyll upgrade your hammer.now you can break the purple
rocks and when they upgrade it again later you can breack the black fruitcakes.

i just got the hammer to break purple rocks so now i need the one the one that breaks the
black rocks

Your hammer is used in battle only...I think...

it can be used outside of battle. you need a hammer to break rocks that block your way

after you get the four beanstar pieces go the the cave that Unregistered said and you will
get the ultra hammers

normal(tan)rocks: need normal hammers

super(Purple) rocks: need super hammers

ultra(black) rocks: need ultra hammers

1.brown rocks:forge in hoohoo village 2.purple rocks:forge before you go to oho
oasis 3.black rocks:the same with number 2 (but you have to do something to
forge)