Mission 76: Destroy the shadow globs
Shadow globs have overrun Never Land. They have been deemed harmless at present; however, allowing them to propagate further would have dire and unpredictable consequences. Destroy them on sight.
Roxas is sent to Neverland to destroy shadow globs.
The shadow globs are well hidden in the Night Sea area. Many are on the far sides of rocks jutting from the water's surface. There's also the danger of triggering Wavecrest appearances while flying around.
Clear out the sea area, then proceed to the pirate ship and do the same thing. By the time Roxas eliminates the ones on the deck and the mast, he'll have completed the mission. But that doesn't mean there isn't more. Enter the Captain's Cabin and destroy the two in there to achieve 100%.
Using Thundaga quickly fly to the Shadow Glob located on the nearby large rock west of the entry point, lock on and destroy it. Then do the same thing with the ones on the Pirate Ship Deck and Captain's Cabin which have two each and therefore this will allow you to destroy the five Shadow Globs that are the minimum requirements to completing this mission and quickly head back to the entry point. Due to the tightness in time, repeat this mission if you fail until you succeed in getting all 3 Challenge Sigils.