EMMI robots are a reoccurring boss throughout the game. And they progressively get harder to avoid.
I originally didn’t like them very much, but in retrospect they were very challenging in a fun way. They’re very terrifying at times, almost like playing Resident Evil but you’re playing Metroid Dread and they’re not zombies.
One of the best things about them is they often give you new abilities once you defeat them. Which makes the battles more rewarding.
During the final EMMI encounter, Samus Aran has the ability to block their attacks, which usually meant instant death.
But she eventually has the power to destroy them without the use of the super laser cannon thing. Which is a little bittersweet because it only happens during the very last one, and it’s all a cutscene.