High Score Card Collector Event Guide for Zenless Zone Zero

This event will take place during version 2.6 of the game, from March 16, 2026 until March 23, 2026.

During this event, complete various challenges at the HIA to earn a chance to flip some cards and obtain various rewards!

In order to access this event you need to unlock the Combat Simulation after completing the Main Story Chapter 1 "Cat's Lost & Found".

During this event you need to head over to the HIA. They have a few challenges for you, and if you complete those, you can flip a few cards. You only get a couple of chances per day, so do not miss them out!

In order to start the event, head to Sixth Street near the Remodelling Shop and talk to HIA NPC named Rita waiting for you in a corner.

During the event, you can visit Rita each day on Sixth Street to take part in the HIA Club's special card-flip mini-event.

Each day, head into Combat Simulation and choose any of the available enemy cards. Completing the challenge will reward you with double drops along with a Stamp Seal. Basically, to make it simple, just head to the HIA and do your any stage that indicates "double rewards". Any of those will count for the event. Once completed, you receive a pop up with your stamp.

You can then use these Stamp Seals with Rita to flip cards and claim rewards such as Polychromes, Boopons, and other items.

A few important things to keep in mind:

• You can obtain 1 Stamp Seal per day, for a maximum of 5 during the entire event.
• Each day, 5 enemy cards receive special buffs to make the challenges easier.
• These buffs reset daily at 04:00 (server time).
• Make sure to run Combat Simulation daily during the event so you do not miss any of the available Stamp Seals!

During the event, you can earn the following rewards:

• 300 Polychrome
• 5 W-Engine Energy Module
• 5 Bangboo System Widget
• 30 Original Chip
• 50000 Denny