I can give a few more tips in case you want to give it another shot sometime.
I've already mentioned high and low pucnhes get telegraphed differently. However, if you block them you will take chip damage (1dmg) but that's not usually a big deal. It's mroe effective to dodge but you hae to be carefull dodging body shots because if you dodge into the direction the body shot is coming from, or you duck into a body shot you'll get hit anyway. Luckily no input blocks body by default so playing it safe could be dodging high punches and jsut blocking low ones.
Also inc ase you weren't using the special mirrors to block the bald shine that lets you get in a steady stream of free hits. Head punches do more damage and for Bulk Bogan body shots basically do chip damage to him, again only 1dmg. But for him, any pucnhes you get in will be worth it so if he's blocking high too much then get a few body shots in.