Swimming pool boss fight.

[Hyperchaotic]

Awful fight. It's just awful.

[Sm Izumi]

All the Bosses are.
This one is ridiculous you just spam punch charged and done. ZzZzZz

[Asura Omnis]

I enjoyed it but it was pretty easy. I just went rage mode and knocked him in there twice and then used a charged up bat to finish it off. Beat em ups rarely have boss fights that require too much more skill than the regular enemies. Only game that has enough depth that I can think of was Guardian Heroes. I wish they'd re-release that again for PC and modern consoles.

[Spid3r]

I didn't find it too dificult i would charge the punch for the boss and punch her into it and just throw the normal guy into the grinder.