The world ens with you...jelly fish?

Question

I heard you need a certain pin to kill the jellyfish, where do you find it?

Answer 1

Ahh, The World Ends With You, good game. To answer your question, I don't think you need any special pin. After looking through a number of FAQ's on the internet, the only type of Jelly---- creature (Not called Jelly Fish) can start multiplying if you don't act quick enough against them.

It would help if you included which of the three chapters your on and what day of that chapter. You can check out various sites to help you if you need it such as gamefaqs.com. I hope I helped you out.

Answer 2

Any pin that doesn't involve you touching the jellyfish will kill them.  Contact pins are a little dangerous because the jellyfish swords can hit you back.

I've found that the pins that lay chains do very well against jellyfish because they don't experience a lot of knock-back.