Chubs and Nubs are a duo final boss you can face off against at the end of The Junkyard. They may seem easy at first, but they have a few tricks that can make them tough to deal with. Here are some tips for beating Chubs and Nubs in Mewgenics.
Chubs & Nubs Boss Guide in Mewgenics

Both Chubs and Nubs are blind, so you’ll often see them try to swipe at open air. The most annoying part of their builds is what they do when you damage them. Chubs will shoot a straight Poison shot in the direction it’s facing, while Nubs lobs a Poison shot in the air three spaces ahead.
Essentially, don’t put your cats in front of Chubs when attacking, and don’t stand three spaces in front of the direction Nubs is facing. Knowing this will save you a lot of stress, as you’ll only have to deal with the damage they deal on their turns.

I recommend trying to kill Chubs and Nubs around the same time, as each of them has a unique move after the other dies. When Nubs dies, Chubs will continue shooting the Poison until it hits something. But when Chubs dies, Nubs will initiate a nuke that explodes on the final turn.
In my run, Chubs went down first, but Nubs was already on death’s door. I was able to defeat Nubs before the nuke went off, but if you don’t have time to do that, find cover behind the stone blocks. You could also disrupt Nubs’ attack by stunning or freezing them.
