[ marcy looks at where the other gladiators got sentenced to death ]

I think this is just a dungeon. [ which is logical in adventure time and nowhere else. marceline has to pick the guitar because of this, and also because it's just a super cool guitar and she likes those. also her charisma stat. ] A weird prism one that's beaming knowledge into our skulls and saying I should spray paint on my teeth.

[ if she's going to do that she's picking the red can, because then at least she can eat it. that's the logic. ]