OK here's what you do:First he throws these shadow ball thingys right when it lans and turns into a rock bowser will you his flamethrower to knock you out dodge it and if the fire hits a rock it will bright up!Pick it up and throw it at bowser!(Note:Becareful when you try to throw the sparkling rock at bowser. bowser will try and knock you over with a blue shadow ball and when it lands it will seprate and shock you.You will also lose your rock.To dodge it jump over it! Reapeat this process until you defeat bowser.

Right

when he throwes the red things avoid them. let him use his fire breath on it and it will
sparkle. pick it up with b and jump and throw it at him (whit b again) do it a few times
and he will lose his grip and u will win.

just wait until he throws a ball and then leave it until he blows fire on it and sparkles
grab the sparkle and go to bowser and jump then press B when u jump and do that a few
times and u'll eventualy win! :)

Last answer i put that