You fight several rocks in Runespell, ones that you can see from a long ways away and at least one that you challenge to a duel. (While I have never seen Yu-Gi-Oh!, I am led to believe that challenging magic rocks to duels via card games makes much more sense for that audience.) If the rock gets the first turn, the game announces, “You have been ambushed!”
And I’ll be honest, I did not see that one coming.
Your TV Tropes link of the day.