My main issue with this boss fight was how repetitive it was throughout each characters arcade mode. You fight a single Polygon character, defeat them, Polygon man crashes into the stage, you bash him until he flies off the stage, he summons two more Polygon characters, you defeat them, etc...
You knew what to expect everytime you fought him, and there was no real challenge to the fight.
Something i think would have made the fight cooler would be instead of the characters you have to fight just being purple with yellow eyes (like Polygon Man himself) Instead it would be cool if the characters were transformed into PS1 versions of themselves.
Just think what Jak or Nate or Ratchet or Sly would look like in PS1 graphics
Why not making Polygon Man this game's Edge Master? Switching movesets between respawns and stuff.
But of course, to balance that, he got his own set of supers that doesn't switch.