Robot Chozo Soldier appears in a chain of several boss fights throughout the game.
The first fight is definitely the hardest because you don’t have the arsenal you have later in the game. This robot can definitely drain your health without trying very hard.
Creating distance and getting your shots in when you need to, is definitely the key to the fight.
They’ll pop up back later, with the most notable being two of them at once. Never thought I would actually fight them in a two on one. But because of missile locking, they’re not hard to put down.