An Oogie Boogie Bash ticket includes admission to Disney California Adventure Park starting up to three hours before the official start of the party. For example, if the bash begins at 6:00 PM, your special event ticket allows you to enter as early as 3:00 PM for the "mix-in" period. However, it does not include a full day of admission, and it does not grant access to Disneyland Park. If you want to spend the entire morning and afternoon in the park before the party, you would need to purchase a separate standard day ticket or have a valid Magic Key. Because the event is "hard-ticketed," the park is cleared of regular guests when the party officially begins, allowing bash attendees to enjoy the themed entertainment and shorter ride wait times for the remainder of the evening.