Upon entering the park all guests receive a plastic treat bag and a special "Mickey's Trick-or-Treat Party" guide map. There is plenty of candy at the Treat Stops, which includes things like miniature Nestle and Snickers bars, lollipops, Laffy Taffy, Hershey Kisses, and Tootsie Rolls. Ghirardelli chocolate squares are also available. Each treat station offers an alternative to candy, such as small bags of apple slices or baby carrots, boxes of raisins, or fruit leather. The treat stops (particularly the Treat Trails) have fairly long lines early, but after about two hours they are shorter. There are even more treat carts along the Treat Trails, located near Grizzly Peak, in the Redwood Creek area, and in the Animation Building. All of the treat stations should have CMs on both sides dispensing candy, so get in line on whatever side is shortest.

All of the park is accessible, with most attractions operating, including Toy Story Mania, though none of the shows are running. The available dining options are Baker's Field Bakery, Taste Pilot's Grill, Award Wieners, Fairfax Fruit Market, Cocina Cucamonga, Pacific Wharf Cafe, and Pizza Oom Mow Mow. A number of popcorn, cotton candy, and drink carts are also open.

There are several formal character greeting areas throughout the park, with a backdrop and a Disney PhotoPass photographer. In addition there are a lot of characters, many dressed in their own Halloween costumes, just walking around. PhotoPass photographers are also available in several areas throughout the park to photograph guests.

Mickey and Minnie - Paradise Bay Park

Disney characters in pirate attire - Pirate Wharf

Villains - Golden Screams Theater

Princesses - Paradise Pier outside Ariel's Grotto, and Hollywood Boulevard

Playhouse Disney - Hollywood Blvd.

Pixar Characters - Paradise Pier near Pizza Oom Mow Mow

There are Halloween decorations all over the park - starting with the ghost lamps and large pumpkins at the Golden Gate bridge. Living scarecrows "hang around" and interact with guests near "a bug's land". Watch the sidewalks - images of pumpkins, bats, and ghosts are projected and revolve around. Giant spider webs are projected on the sides of buildings, the Orange Stinger, and even on the summit of Grizzly Peak.

The pirates have returned to the Pacific Wharf area, transforming it into Pirate Wharf. The area has been elaborately decorated with pirate treasure and the skeletal pirates who are guarding it. There are pirate-themed games with special prizes available, as well as a craft area where Peter and Wendy could be interacting with the kids.

DJs play a variety of Halloween and dance music at the stages at Candy Corn Acres, the Hollywood "Bat-lot" Bash, and Pirate Wharf. There are usually several characters at each location dancing with guests. Throughout the rest of the park a soundtrack of spooky-but-fun music is playing, with selections like Grim Grinning Ghosts, Heffalumps and Woozles, Pink Elephants on Parade, This is Halloween, and Monster Mash.

The Mickey's Trick or Treat on the Street character cavalcade starts at Paradise Pier an hour before the party ends. The floats at the beginning and the end are accompanied by walkalong characters and costumed dancers. There are two large moving jack-o-lanterns in addition to the central float with Mickey, Minnie, Goofy, Donald, and Pluto in their Halloween costumes. The parade includes three performance stops - one at the Golden Screams Theater, one in front of "a bug's land", and one at Candy Corn Acres, where Mickey, Minnie and Goofy perform some Halloween-themed music, and the other Disney characters in the procession as well as the costumed Cast Members invite kids out of the audience to participate.