Bobert is an interesting character in that he's stuck in the rut of always having the same joke. He's a robot, so he follows all things as literally as possible with emotional detachment. (When postured with defining love, for instance, he defines it in tennis terms.) Because of that, it seems especially hard to write episodes centered around him as he's entirely static- there's no dynamism to his character, but that only really compliments the design. When the show uses him, most of the originality is in all the things framed around him and the extent to which he doesn't understand human logic.
I mean, conceptually, this is incredibly similar to Season 2's The Bet, wherein Gumball and Darwin take control of Bobert for the day, eventually spiraling into Gumball nearly being terminated. In this case, they try to fix Bobert, eventually spiraling into all of mankind nearly being terminated, so the stakes are a bit higher.
It starts out simple- when having a conversation with Bobert, they realize the danger of talking to him literally, prompting him to perform such acts as attempt to decapitate Darwin's hand ("Give him a hand", so to speak), and seek to make him safe for the rest of the world's good and, y'know, to get out of homework.
Right out the gate, the episode has some strong moments- the whole sequence of Gumball and Darwin trying to set rules as to prevent any form of harm is a fine example. It starts out obvious- "Never raise your hand against anyone" means a kick in the knee. But then even the most foolproof methods become increasingly more absurd- when asked to not move a muscle, Bobert instead emits concentrated radioactive waste on Gumball, making his tongue crawl out of his mouth. A similar sequence finds Bobert upholding the law- every law regardless of its lunacy, leading to hyperspecific law-breaking being objected to and amended. (Yes, I checked, it is in fact illegal to sing off-key in North Carolina.)