On this page of the Biomutant game guide you will find a walkthrough of the Boom Sploder side quest. Here we've described everything you need to explore to complete this quest and earn rewards.
Starting the quest
How to start: Talk to the man working near the fence in Flippberdit.
Reward: 100 XP.
After talking to the man in Flippberdit, you need to go to meet Boom. He is waiting in a small store, just talk to him and he will give you the next part of the quest.
Boom will send you to the next location. It will be a sizable building with lots of hay in it. You must set it on fire and then search the entire apartment.