The game is that one person draws a sketch of a character then vaguely describes it (no species naming, exact body types, exact ways that they are something, yadda yadda...) to someone else and they have too draw what they think the character looks like and also add 1 or 2 traits (depending on how many people are playing) to the design as well.
i.e.: Person 1: The character is long, bipedal, and gross. Person 2: The character is long, bipedal, gross, and double helix. Person 3: The character is long, bipedal, gross, double helix, and clear. Person 4: The character is long, bipedal, gross, double helix, clear, and drippy. Person 5: the character is long, bipedal, gross, double helix, clear, drippy, and reversible.
and then it keeps going on until a) everyone you planned to do this with does a design, or b) you cant add any more traits because your out of ideas, and then you compare the designs and share it.
I just thought this would be kinda cool, since stuff like this almost always ends up horrifying and there's nothing like having fun with your friends by creating a monstrosity...