Hooktail Castle

This is the castle where Hooktail, the dragon who is terrorizing Petalburg, lives. Mario, Goombella and Koops go here to defeat the evil Hooktail and get the Diamond Star, and what's more, have Hooktail cough up Koops' dad, Koopley.

Also, with Bobbery's help, Mario must retrieve the Up Arrow and give it to Merlon.