Alright, so doing some analysis on King K.Rool and Donkey Kong...I've put this together for an example:
Donkey Kong here in Punch-Out Wii shows that Little Mac, being 5'7", comes up to a little below DK's chest, and Little Mac's arms, estimated to be somewhere around 2 1/2 feet long, do not reach anywhere past DK's mouth, meaning that DK's actual height is somewhere around 8'2" tall, while weighing around 800 pounds as displayed by the final battle of Donkey Kong 64.
Now for K.Rool's comparison...
Donkey Kong, in this picture, would come up a little past K.Rool's foot standing straight up, meaning it would take about 3 1/2 DKs to match the height of a straight standing K.Rool. So if you take DK's 8'2" and multiply it by three you get 24'6" and then by half, which is 4'1", you get K.Rool's actual height, which is 28'7" tall.
This makes K.Rool bigger than any appearance Ridley has ever appeared in, excluding the X-Parasite clone of him which was a larger manifestation of the host, meaning that Ridley was bigger than he should have been. In short, Ridley is actually smaller than K.Rool. Does this mean we have to say K.Rool is too big now?
(I know size is irrelevant, so please ignore this) :3