Come and join SM City San Mateo's Halloween Trick Or Treat and Halloween Costume Contest! Register at the 6th Level Mall Admin Office of SM City San Mateo! Kindly bring PHP 1,000.00 single or accumulated receipts to register per kid. For the Halloween Trick or Treat, they may only accommodate the first 400 registered kids. Event details may change without prior notice. Visit their Facebook page for inquiries.