Look Into Upgrading Your Pod
Your Pod is the most handy companion you’ll come across in NieR: Automata. By holding down R1, the Pod will fire a steady stream of bullets at your locked on enemies. You can also hit L1 to use your Pod’s special skill. While the Pod’s damage output might seem a bit low at first, you can upgrade it to make it even stronger. Hit up the Terminal vendor in the Bunker to purchase new Pod programs and to upgrade its base stats.
The materials required for Pod upgrades are actually quite rare, but the upgrades themselves are usually quite substantial. If you can’t upgrade the Pod just yet, don’t worry.
The Pod programs available in the game are quite varied, and can be used for a lot of situations. For instance, your Pod starts off with a laser blast, but you can obtain other programs that deal AOE damage and suspend enemies in the air. The laser is really good, but you should look for something that might be better suited to your play style.
If you don’t want to travel to the Bunker, the Resistance Camp also has a vendor who specializes in Pod upgrades.