Everything awesome about Adventure Time - Food Chain:
Bird Jake and Bird Finn
"Do birds play football?" That reminded me of this scene from Land of the Lost.
The Magic Man returns
This episode was guest directed by Masaaki Yuasa who is responsible for the awesome Tatami Galaxy anime which you can watch here. Seeing how stylized that is, I guess he was a great choice to work on this. I can actually imagine this episode being shown by teachers to teach about the food chain.