When the coach says "go," all players start moving in any direction as one unit. Contact must be maintained at all times, although the contact point/appendage can be changed as necessary (if you find a hand comes loose, reconnect with a foot).
Tips: Adding dialogue to the group's movement is entirely up to the group, if it helps to justify the group's action.
There is no restriction on how the action may modify during the group's movement. Players may find themselves (if the moment arises) upside down or being carried by others. The entire group should commit to these choices, and offer support - literally - when necessary.
This exercise can get very tiring because of the physical nature of it. Let it go on as long as the group is comfortable.
Variants: Instead of giving the group free reign to move where they want, the coach can instruct them where to move in the room. This may cause the group to make interesting choices when faced with an obstacle (i.e., moving through a doorway, around furniture, etc.).
Sometimes called The Blob or Amoeba.