There are many inventions of the Mad Scientist Marni to be found here,
but I'm mainly interested in these fellas right here.
These MOD Oogs
seem very interested in the many power cores I picked up nearby.

They seem very interested in the many power cores I picked up nearby.
Do you want a power core, too?

I'll give you a power core.
Just a moment.
Hmm? Where'd they all go? I guess I used them all, except this one.
It's okay. I'm a girl of my word. Here you go.
Oh, before you go, I need to give something of a warning about these cores!

Completion Target: Marcellin
- Obtain the MOD Oog Power Core from Marcellin

---

Required actions:

1. Meet NPC: Marcellin