King Ka-thunk's Castle

King Ka-thunk's Castle, or, is the fifth castle level of Super Mario 3D World and the ninth course in World 5. It is unlocked via completing Searchlight Sneak, and its own completion frees the Purple Sprixie Princess who builds a Clear Pipe to World 6.

Green Stars

 * Green Star 1: The player must activate the Green Ring and collect all 8 Green Coins to reveal the green star.
 * Green Star 2: After the checkpoint, the second green star can be found inside a Ka-Thunk. (See picture)
 * Green Star 3: The player must use the Cat form to climb a wall right next to the Warp Box to obtain the green star.

Stamp

 * Not far from the second green star, the player must use the cat form to climb the wall next to the rotating Ka-Thunks.

Enemies

 * Ka-Thunks
 * Chargin' Chucks