Three of Disney California Adventure's rides get spooky fun layovers during the Halloween season. Over in Cars Land, Luigi's Rollickin' Roadsters gets transformed into Luigi's Honkin' Haul-O-Ween, and Mater's Junkyard Jamboree gets turned into Mater's Graveyard JamBOOree. Then Guardians of the Galaxy - Mission: Breakout gets turned into Guardians of the Galaxy - Monsters After Dark.
These attractions are available with the layover during throughout the Halloween season at Disneyland Resort. If you're only planning on going to Disneyland once during Halloween, and planning to spend one night at Oogie Boogie Bash, we would suggest doing these attractions during the party for a lesser wait time — party nights have a limited crowd.