Commentary:

It’s a good thing Green doesn’t have a nose, or that rope would be tied right across it. Green is definitely the most cautious of his friends. Even though Blue is usually down about something, she still spends her time experimenting and looking for new things to do. Green is more comfortable with routine, only doing more exciting things at the prompting of his friends. He does not like having to be the one to go into the scary portal to another dimension to save Red. Yellow’s ribbing does not help matters.

Purple is here to help them save Red, even though at this point they have not met. Red eventually does end up becoming Purples guardian, of sorts, but it’s Cyan who spends the most time with him, bonding over both being outsiders.