u cant
You can't be a fire ninja without paid membership.
you can't unless you get a membership card
You can't unless you use Penguin Storm.... but i wouldn't recommend that (It can get you banned FOREVER!)
YES... but you can be a normal ninja whidtout membership
Yes. you can buy the membership on the club penguin website
There is no way to get a free membership on Club Penguin without hacking. (I do not recommend hacking because if you do Club Penguin will ban you.)
the items in the catalouge require membership but all ninjas get the ninja mask Mnbvrulez
yes, you dont need membership to get the ninja amulet.
You either have to have a code or a membership.
you cant without membership
with club penguin trainer 2
unlock them