Question:  How do YOU spell the word:  color or colour?
Answer:  It depends on where you live!  People who learn the English language U.S.A.-style spell it "color."  People who learn English British or Canadian-style spell it "colour."

In this game, BlackDog's friend, Max, the super guy who made this game for you, lives in Canada, so he spells it "colour."  BlackDog lives in the U.S.A., so BlackDog spells it "color."  We're both right!