I definitely agree that Broly is a complete monster to begin with.
But, should we wait once the upcoming DB Super: Broly movie comes out to solidify this status?
[SPOILER ALERT] And, towards the end of the Shattered Grid arc, he willingly rejected the revived Tommy's offer of redemption. Not to mention, his actions more likely makes him one of the darkest villains in the franchise, even by Ranger standards.
Game, more particularly in Ultra Sun & Ultra Moon.
US/UM more likely retains the general plot of S/M if I can recall. That means, unlike Black 2 and White 2 due to the fact it's a sequel to Black and White, its similar to Platinum: like back when Cyrus was about to control Dialga and Palkia, Giratina shows up and sends him to the Distortion World.