Something I’ve always thought about with Majin Boo,
He was like mash up of the two eras of the franchise,
Toriyama’s increased freedom by the Boo arc allowed him to lean more into the gag roots the manga had,
But still maintaining some of the more serious tone the manga had gotten from the Saiyan Arc onward
So Boo as a result is like if you took an OGDB gag villain, with the darker tone and violence the later arcs had