You take six colors, any colors you want, but not by Hex code - by name. For example, for mine I picked Cyan, Lavender, Navy Blue, Orange-yellow, Acid Green, and Bubblegum pink.

With those colors in mind, you must then draw six characters relying mostly on that main color and how the color itself makes you feel (i.e. Cyan has a mostly cyan color scheme, and cyan to me is.. really bouncy? Kind of pep and skip-yay? Orange-yellow is actually rather heated, like fire, and his color scheme is mostly orange, but with accents of black. It's rather a jarring, in your face kind of color..)

Once you've drawn those six characters - while trying to stick to the idea of what the color does for or says to you, you must then..

Combine them.

Yes, you combine all six characters into one character, while retaining key points to the character's design in the latest character. Is it going to look disjointed at first? Of course! But it helps with creating a diverse cast.