Home-Run Combo

Revenge is Sandbag's Final Smash. When triggered, Sandbag will suck up the character nearest to him, and then blasts off like a rocket towards the Home-Run Contest Arena, then, cries a "negative zone", that stops time, and combos the opponent, with two attacks (up tilt, and back aerial, respectively). He then grabs a Home-Run Bat from inside himself, winks, and proceeds to hit the opponent very hard.

Origin
Revenge is the crux of the joke behind Sandbag's character, in that he himself is usually the target in Home-Run Contest and is now returning the favor to those responsible.

The highest scores in the mode are attainable by performing steady combos within the confines of the small platform, which Sandbag does automatically. The method how he goes about it, however, is an external reference to JoJo's Bizarre Adventure; specifically, to the character Dio Brando and his own ability to stop time, marked in the series by inverted colors.

Trivia

 * Currently, the animation still uses the Home Run Bat's old texture.