Jake Jr. eyes

Well its a obvious one, we can clearly tell "where the hell is Jake Jr.'s eyes? Well people have been saying that due to Recardio's doing in the episode "lady and the pebbles" that he tied her body into a knot. That explains the birth defect that Jake Jr. suffered from. ( ya kinda disturbing)

The Mushroom War

Well people believe that there was a nuclear war in OOO. You can kinda believe that because you can see bombs, and a old tv. Well that explains why they all don't have technology, and there are no "functioning" working cars. (The reason why I say that is because you can see old cars around OOO.) Also if you have watched the episode "Simon & Marcy" they are living after nuclear war, and some mutated people.

The Fish People

We all know (maybe) that Finn thought he found humans living under in the "sewers".  But when the candy people attacked them he found out that they had fins and gills on there heads. What people think is that they were humans until there was a nuclear war, so they hid underground. Due to the radiation they mutated into half human-half fish. As you can see in these pictures

Finn Losing his Arm

Well, many people (on the web) have been saying that Finn will lose his arm. I got to say that might be true. Well First there is a lot of hints that tell us that he well lose a arm. But I think he will lose it when Jake is not around. In many episodes without Jake, Finn is reckless and careless. He always get beat up, he makes poor decisions, etc. Here are some pictures that support he will lose a arm.