Learn how to acquire Saitama’s weapon, the One Pump Chump, in Borderlands 3 with our comprehensive guide to this extraordinary legendary weapon and its Easter eggs.
Do you want to make sure you don’t miss out on the exciting content that Borderlands 3 has to offer? If so, here’s a guide to find the legendary weapon known as “One Punch Man”, which becomes accessible through the magic of Easter eggs. In this Easter egg, you’ll encounter a manga hero who transforms into a ruthless sadist. Defeating him gives you a chance to loot a unique legendary weapon called the “One Pump Chump.” With this, your character Zane will look incredibly stylish, especially considering that One Pump Chump is potentially one of the best legendary weapons in the game!
How to Obtain It
To find this Easter egg, you will first need to travel to the map “Lectra City” on the planet Promethea. Once you arrive, head to the subway beneath the map, which is marked on the map as shown in the screenshots below:
At the bottom of the stairs, take a right and then a left whenever possible. You should find yourself in the same position as shown in the screenshot below:
Continue down this corridor until you reach a small alcove on your mini-map. You’re almost there.
You’ve found it! At the end of the corridor, five screens will be visible with a door nearby. The mini-boss will emerge from this door, and your objective is to activate all the screens simultaneously. To do this, you’ll need to interact with all five available elements at the other end of the corridor. Play around with them, spin the wheel, press the buttons, pull the lever, etc. There isn’t a straightforward solution, so experiment, and it should eventually work!
Once the mini-boss is defeated, he will have a chance to drop the “One Pump Chump.” The drop rate for this loot is fairly high, but you may need to try multiple times to achieve it. The process is simple: after defeating the “One Punch Man,” exit the area and then return to restart the steps from the beginning!
About the One Pump Chump
This impressive shotgun, made by Jakobs, is sure to bring you joy. Once this weapon is in your arsenal, nothing will stand in your way! To be serious, this weapon is strong. It might not have any particular effects, but it deals significant damage. The weapon holds one shell in the chamber, but you might occasionally save a shell (with a 50% chance per shot) for reasons unexplained (see the unique red line).
We acquired the weapon at level 13, and it remains effective. Here are the statistics for you to admire in the capture just below:








