The Grand Smasher is Bojack's signature move. He raises up his hand in front of his chest, forming a bright-green energy ball. He then shoots it to his opponent, inflicting serious damage. This attack is similar to Vegeta's Big Bang Attack, though it differs in color. It was named in the Budokai Tenkaichi series and is Bojack's Ultimate Blast in his base form and one of his Blast 2 attacks in his Full Power form.
The Grand Smasher has some variations.
- Trap Shooter: Bojack fires a dozen small, thick energy bullets in a rapid fire blast. He also uses this a few times in the movie Bojack Unbound against Gohan, Vegeta, and Future Trunks. It was named in the Budokai Tenkaichi series as one of Bojack's Blast 2 moves in his base form.
- Galactic Buster: This is Bojack's ultimate attack that he used in the movie. First, he forms two Grand Smashers with one on each hand and then spreads them in a style that is similar to Vegeta's Final Flash. He then launches them in the form of a gigantic energy wave. He tried to kill SSJ2 Gohan with this blast, but was countered by the Super Kamehameha.