Kitto Katsu

I saw this on the BBC tonight and just could not pass it up.
Japan snaps up ‘lucky’ Kit Kats

Also mentioned on Metropolis:

” The sale of lucky charms sky-rocketed as high school students prepared to sit their university entrance exams, with Kit Kat chocolate bars (kitto katsu meaning something like “it’s a sure thing I’m going to beat this game”) proving particularly popular, including a chocolate bar designed to recall the calm of matcha tea.”
Metropolis – Lucky charms