You will have two ghosts for that course- your best time, and the new ghost time.
Get four fast staff ghosts.
unlock 8 fast staff ghosts or beat 100 ghosts (your choice)
look on your wii
If you meant fast staff ghosts, go to cheatcc.com to check how.
to unlock any expert staff ghosts in Mario Kart Wii, you gotta beat the normal ghost in the time trials.
Staff Ghosts Are The Time Trial Ghosts Left By The Game Testers Before The Game Was Released
Unlock all fast staff ghosts and achieve a 1-star rank on every cup.
Luigi Curcuit
You have to unlock 24 Expert Staff Ghosts (also known as Fast Staff Ghosts). To do that, you must beat the regular ghost by 7 or more seconds.
Unlock 24 fast staff ghosts. You get fast staff ghosts by beating the first ghost by seven seconds or more. The sprinter is very fast and has great handiling, but does not have very good off-road or Mini-Turbo.
By beating cups in the Grand Prix, by playing Time Trials, and by unlocking fast staff ghosts in Time Trials.
Beat 8 expert staff ghosts or beat normal staff ghosts by 3 seconds a minute