Kamek Did Not Make Bowser As A Big Koopa
There is a "theory" out there that Kamek made Bowser through some means as a hybrid magic created boss to rule the Koopas, and make them do Kamek's bidding as he puppeteer's Bowser. This is not the case.
So as we know from games from the Yoshi's Island games, Kamek is very well capable of leading the Turtle Tribe, and with his magical capabilities he has no need for a puppet to control.
Second, it is established there is a Kuppa monarchy that has been around for awhile, with Bowser being the heir to the throne as the young prince. In addition to, as soon as he is able to he starts taking charge of the Koopa Troop. We also might have seen a picture of Bowser's father before, and we see other members of Bowser's species the Kuppas throught the Koopalings. Kamek himself takes the role of Bowser's caretaker, similar to how Toadsworth did for Peach.
Finally, we have seen a Boss Koopa be created by Kamek's magic before and they don't look anything like Bowser. Aka Hookbill the Koopa who we see is still around when Bowser is an adult in Tetris Attack.










