In F-Zero X to get 100% you would have to race all 5 cups on all 4 difficulty levels with all 30 different vehicles... that's 600 cups and a cup has 6 tracks in it.... so takes about 15-20 minutes.
Thats 150-200 hours already, and that's only if you get 1st place in a cup on your first go.
I also haven't added the time-trials or death-race... trying to beat the staff ghosts is not a 1 attempt thing.
My point is, going over the same bit again and again is not additional hours to add to the games estimated completion time.








