Bowser's Sky Castle begins with a red carpet foyer where Kamek attempts a last-ditch attack on Mario, again employing the flip-flop trick. This last attempt at protecting Bowser is feeble, but it will leave Mario going into the final battle without any useful stickers unless he leaves after beating Kamek and returns with a new batch.
After defeating Kamek, Mario runs down a conveyer-belt obstacle course before discovering Princess Peach, suspended by a rope from the ceiling. She calls out to him, but Bowser appears with the final Royal Sticker as his crown. Wordlessly, he calls for reinforcements, opens a giant hallway, and sends Peach off into the distance where Mario cannot reach her as the showdown begins.
There are no stickers to be found in this level.
ENEMIES
Note that all of the normal enemies are found in the battle against Bowser at various times.