The Singwon is a Maxis-made creature present in the final game. It is similar to the creatures Singtoo and Singtwee. It is more of a social creature. Like the others it has a row of bony nurples on its back, providing it with an average charm. It also can do a moderate dance and an unimpressive pose. It can sing too, but not very well. When in combat it can do a weak bite and can strike enemies with it's hands.
The "won" ending may be a simplification of the number one.