Spooky Castle is an Experttrack in the Flash version of Bloons TD 5. It is a Halloween-themed rendition of Castle; the previous castle decorations are gone and there are instead some pumpkins scattered around. The trees surrounding the castle's moat are now dead, and the track in general is much darker.
Bloons enter from the top side and bottom side and exit on the top side and bottom side. The general layout is identical to the original track; however, the left path is now traveled in reverse by the Bloons. As a result, the left path now enters at the same place the right path exits. The castle walls and trees block tower placement.
