If you mean from Mario Bros, it's Boo.
Ghosts of Luigi are just there for u to beat
Staff Ghosts Are The Time Trial Ghosts Left By The Game Testers Before The Game Was Released
there nothing
on the ghosts
You cannot really kill ghosts in Super Mario unless you have an invincibility star in use. However, you can stop them by looking at them, which makes them cover their faces.
yes ghosts have a alternate name
look on your wii
the ghosts name in skylanders is ghost roaster
unlock 8 fast staff ghosts or beat 100 ghosts (your choice)
You can't. Note the fact that when ground-pounded, Boo says "Ghosts... Don't... Die!"
to unlock any expert staff ghosts in Mario Kart Wii, you gotta beat the normal ghost in the time trials.