Zenless Zone Zero: When Sandwiches Come A Knockin' event guide

HoYoverse has officially rolled out the When Sandwiches Come A Knockin' event in Zenless Zone Zero 1.4, which requires players to help run a newly opened food truck at Lumina Square. In exchange, they can earn plenty of rewards, including Polychrome, Denny, and other in-game resources.

This guide explains everything you need to complete the When Sandwiches Come A Knockin' event in ZZZ.

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Zenless Zone Zero When Sandwiches Come A Knockin' event duration and requirements

The When Sandwiches Come A Knockin' event kicked off with the Zenless Zone Zero 1.3 update on December 4, 2024. It will be available for 12 days, offering exciting rewards like Polychromes, Boopons, and the Special Feast Commemorative Photo. The event will end on December 16, 2024, to be exact.

Only those who have completed the Chapter 2 Interlude Main Story and reached Inter-Knot Lv. 30 will be able to participate in the When Sandwiches Come A Knockin’ event. You can initiate it after talking to an NPC named Heddy at the Random Play video store in New Eridu.

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How to complete the When Sandwiches Come A Knockin' event in Zenless Zone Zero

According to Heidi, a new food truck has popped up at Lumina Square. Head to its location and chat with the food truck chef to access different food delivery commissions. During the When Sandwiches Come A Knockin' event in Zenless Zone Zero, your job will be to take orders from customers and serve them whatever they pick from the menu.

Place the correct order and deliver them to customers (Image via HoYoverse)

Next, confirm the order with the chef and set up delivery routes for One-Dennyboo when the food is prepared. Setting the correct route requires solving the mini Bangboo puzzle. Just flick the gears on the screen to complete the circuit.

Once the mini-game is completed, the Bangboo will activate and follow you around. Guide the entity to the customer and interact with them to complete the delivery. Then, take a photo of the Bangboo with the customer and return to the food truck.

Check the rating to complete the commissions in the When Sandwiches Come A Knockin' event in ZZZ. To ensure you don't miss any details, refer to the hints at the top of the screen while placing orders, especially if you forget the conversation with the customer.

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Check out our other Zenless Zone Zero articles:

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• Best W-Engines for Lighter
• ZZZ Miyabi kit breakdown: Leaked abilities and playstyle explained
• ZZZ Harumasa kit leaks: Abilities and playstyle explained