Biomutant features a wide array of weapons and tools that will help you survive. You'll need to make sure you have each one upgraded as much as possible so that you have access to all of the world's secrets. You can even upgrade the Klonkfist to level 2 by visiting a character named Klick. Here's how to upgrade the Klonkfist to level 2.
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Biomutant: How to Upgrade the Klonkfist to Level 2
To upgrade the Klonkfist to level 2 in Biomutant you will need to visit Klick. They are found in the Northern part of section 5D on the map, at a location called Anywhere. We've shown this on the map below:
Once there, speak to Klick and pick up a quest. You will need to go to a nearby Sparkstation to charge up a piece of metal with electricity. Flip the switch and stand in the blue circle as it moves around. Press the button that pops up and your metal will be charged. You'll need to do this three times and beat an enemy before heading back to Klick.
Speak to Klick and they will upgrade your Klonkfist to level 2. You will now be able to break through stronger walls by holding attack and charging up each hit.