Ahahahahaha! I want the image of what happens after she eats the cheese.

Is there any meaning behind the other name that each girl is given?

Juansmarts said:
Is there any meaning behind the other name that each girl is given?

Those are the original Japanese names of the ghosts.
Oikake = 追いかけ = Chaser
Machibuse = 待ち伏せ = Ambusher
Kimagure = 気まぐれ = Whimsical
Otoboke = お惚け = Playing Dumb

See here for a good explanation about why each ghost has their name:
http://gameinternals.com/post/2072558330/understanding-pac-man-ghost-behavior

Y'know, all things considered and ignoring colors, shouldn't Sayaka be the "Otoboke" one? Think about it...