Among the many and varied weapons of Smash Bros., the Home-run Bat's always had a sort of quiet menace - after all, you wouldn't find some unscrupulous loan shark had sent his goons to your house armed with brightly-coloured ray guns and a Pokeball. Which makes the item's newest incarnation all the more terrifying.
As Sakurai puts it: "The Home-run Bat in this game is black! And it's so powerful that your eyes might bug out!!" And, like the aforementioned loan shark, he even went on to explain just what would happen to you if you do get hit: "And here's a look at a home run exiting the arena."