Yes, in 2026, the Oogie Boogie Bash – A Disney Halloween Party is a "separately ticketed event" held at Disney California Adventure Park. This means that a standard daytime theme park ticket or an Imagine Key/Magic Key pass will not grant you entry to the party. To attend, you must purchase a specific Oogie Boogie Bash ticket, which typically goes on sale in the early summer and sells out within hours. In 2026, the party runs on select nights in August, September, and October. The ticket allows you to enter the park a few hours early (usually around 3:00 PM) for "mix-in" time, with the official party festivities—including the Frightfully Fun Parade, immersive treat trails, and rare character meet-and-greets—beginning around 6:00 PM. Prices in 2026 range from $139 to over $200 per person, depending on the date, with Halloween night being the most expensive. For the 2026 traveler, this is widely considered one of the best value-for-money events at Disneyland Resort because the capacity is limited, resulting in much shorter wait times for popular rides like Guardians of the Galaxy – Monsters After Dark.