Bowser levels

Bowsers castle levels are always at the end of the worlds and are sometimes replaced by bowsers airships. You usually have to unlock them with Star medals! They resemble your everyday castle but with green spiky domes on top that resemble bowsers shell.

Bosses
At the end of these levels you will have to fight false Bowser, with the obvious exeption of the last castle, where you will have to fight Bowser in the flesh! And in the special worlds you must fight Dry Bowser. The last castle has a different look from the previous castles!