Brawl was full of freaks. Freaks!
And assholes. Some of them remain so even if they're not top tier like Falco.
Still, looking at Brawl more in-depth, there seemed to be a lot of weird stuff. Most of it seems fine like other Smash games, but then there's bits and pieces that make you wonder what were they thinking? Granted, that can be said for any game. Falco's Fair and his broken on concept Falco Phantasm being buffed while Fox's Fox Illusion gets nerfed, Lucas and Ness's grab release issue, ROB's really low air acceleration, Wario's insanely high air acceleration, and Wolf's 60 frame meteor cancel. At the same time, Brawl introduced stuff, well, characters that for the most part out of weird stuff, were perfectly fine. Charizard, Ike, Lucas, Squirtle?, Venusaur?, Wolf, and ZSS weren't really busted compared to Melee's Falco, Ice Climbers, Marth, and Roy who was on the screwed section to Falco, Ice Climbers, and Marth's screw you section.
Edit: Well, noting down Brawl's movement values just because. Part of it is to compare it with Smash 4's, especially with stuff that was always been there like Falco and Samus's high dash. Brawl's frame data will be later... That part's because Brawl frame data is like barren and it's kind of a pain in the ass when you want to check stuff out compared to Melee and Smash 4.
Edit 2: Edit Harder: Brawl ROB's ground to air jump momentum multiplier and air horizontal jump multiplier are both 0. This means, if I understand the descriptions of both stats, he transfers no horizontal momentum at all when jumping. Coupled with his low 0.006 air acceleration... They really didn't want ROB going anywhere without Robo Burner. Man, ROB had it hard.