From any setup in which people have partners: The designated people
Run, and then do a Curve Right or Left, in the same direction in which
they ran. The others Trade and Roll. The "Curve" is often described
as a Wheel Thru or Left Wheel Thru, in the obvious direction.
This is a space-invader because of the "Curve", though it is very rarely
called in a way that makes use of that.
\syhlines{b4n,g4s,b1n,g1s}
\syhBBBBs{.+.,.+.,g4e,b4w,.+.,.+.,g1e,b1w}
before Girls Run the Wheel
after
The interesting space-invading properties of this call are hardly ever
used anymore. The call is almost always Leads Run the Wheel.