NorthPark Center presents Spooky Strings marionette noon-4:30 p.m. Saturday between Macy’s and Nordstrom. Performances are at 1, 3 and 4 p.m. Mad Scientists will appear at 1:30 and 3:30 p.m., and the Kidville’s Little Maestros perform at 2 p.m. The afternoon includes several other children’s activities and Halloween festivities.

Hillcrest High School hosts its seventh annual Hit-a-rama, an alumni baseball tournament, noon-5 p.m. Sunday on the Hillcrest baseball field. There’s also a Hit-a-thon, and current players will collect pledges to raise money for their Spring Break trip. Spectators can pledge by the foot or just offer a flat donation. The event welcomes students, parents, children and the community with food, games and other activities.

The Northaven Park Neighborhood Association hosts the 25th annual Disney Streets Halloween Parade at 4 p.m. Sunday starting at Snow White and Northaven. Neighbors will don costumes and decorate their cars, bikes, wagons and strollers.