Editing Rob (The Amazing World of Gumball) (section)

==== Season 5 ====
Rob appeared again in "The Rerun," where Gumball relives the events of "The Disaster" but with hindsight. When Rob first turns on the insult subtitles to spite and upset Darwin, Gumball rearranges the letters, eventually spelling "Rob is messing with you." Rob then tries to use the eject attack on Darwin, but Gumball pushes him out of the way. Rob runs off and again tries to break up Nicole and Richard. Gumball jumps on top of Rob to stop him, but accidentally presses the rewind button that starts to devolve Richard and Nicole into babies. Anais points out a time paradox regarding their parents being converted to babies, and argues that the three children need to undo this quickly before they all disappear. Despite this, Anais dies from implosion, and Darwin devolves into a normal fish, causing him to suffocate and die on the spot. This enrages Gumball who tries to attack Rob, but Rob fast forwards Gumball into pushing Penny off the mall balcony once again. They both fight for the remote again, but Gumball gets the upper hand this time. He ejects Rob into the Void with the remote, defeating his nemesis and retrieving the remote. Gumball celebrates, but quickly realizes the consequences of his actions. He jumps into the Void to try and rescue Rob before he (Gumball) disappears, as the time paradox remains unresolved. Gumball extends an olive branch to Rob, but Rob denies his help, arguing that he should remain with the rest of the universe's mistakes, and that his story ends here. Gumball catches up to him, but his body is rendered useless due to the time paradox. Rob retrieves the remote and contemplates turning Gumball "off," but he cannot bring himself to do so, deciding to spare Gumball’s life instead. Rob hits rewind, and appreciates how Gumball came all that way to save him. Rob realizes the only way to fix everything is to go back in time to break the remote, which will undo their reconciliation, but Gumball states he looks forward to being Rob's enemy in the future. Rob then goes back in time, fixing everything, and destroys the remote, claiming it is too dangerous.

Rob returns in "The Ex," where he finds himself a new archenemy in Banana Joe. He argues that Banana Joe is "easier to hate" after the emotionally complicated events of "The Rerun." Gumball is distraught, and while ignoring Penny's suggestion to leave the situation alone, he tries to win back Rob's hatred. He does so by suggesting villainous ideas to Rob, being intentionally annoying, and mimicking Banana Joe. After this proves to be fruitless, he tries to befriend Rob instead. He joins him in a stakeout at Banana Joe's house, but ruins his trap by inadvertently alerting Banana Joe with his phone. Rob flies into a rage and lashes out at Gumball for foiling his plans, solidifying Gumball and Rob as nemeses yet again.