As is often the case, the name of this nebula is more sensible when seen with the eye through a telescope than in a photograph that includes colors we can’t see when this faint. But if you imagine the shape of the famous video game character I think you might see how this object got its name.
Captured at the 2012 Oregon Star Party.
Scope: AT111EDT at f/5.6
Mount: AP Mach1
Camera: QSI 583 at –