NDC: 2010

http://www.newgrounds.com/portal/view/554083

YANKOVIC: Go to the picture with the thing about girls liking dogs, click the C in once, the E in heard, the I and K in like, the Y in guys, the O in dogs, the W and E in went and then you should get the medal and see the animation.

OBSESSION: Go to the black-white picture with the many tentacles and the girl and click all of them.

SOMWHERE IN NEVADA:
(broken image removed)

I have absolutely no idea about the secret medal though, even after decompiling it and look through all the stuff.

This post was imported from an account that no longer exists!
Previous Name: phreneticus

EASY AS CAKE: Go all the way through the collab.
SECRET TREASURE: Click the capital letters N, D, and C of the words "Notepad Drawing Collab" immediately after clicking the Play button.