Continuity mistake: With the first strum on his guitar, Punk Rocket blows the orchestra and their paraphernalia all across the stage. But after the titles have rolled and the Titans are called into action, the stage is free of the stands, music sheets, instruments, and even the conductor's pedestal which were previously scattered all about.
Continuity mistake: Cyborg joins the Robin cosplay cadre, and in the garage we see him providing airflow for Beast Boy's cycle number. Look at Cyborg's right hand: first the wrist is colored green, the same as Robin's glove on his other hand, meaning that he must be wearing such on his right hand - which would be impossible without having it shredded by his hand-turned-fan. When Cyborg changes his hand back, he is not wearing a glove, but when he tries to take his turn on Robin's bike, he is suddenly wearing gloves on both hands.
Continuity mistake: Cyborg is brought into Sarasim's village, where he asks how he came to be here. When Sarasim answers that the ancient ones must have sent him, she is standing right in front of Krall. After Cyborg answers, "So when exactly do they send me back?", Sarasim comes forward, stepping past Krall despite already being in front of him in the earlier shot.
Plot hole: When Beast Boy finally brings himself to disable the Destruct-O-Tron, the hole he punches into the device to get inside is already visible when he is still bracing himself for the plunge. This background was simply reused for the scene where the device shuts down for good.
Plot hole: When Beast Boy hires at Meaty Meat, he takes away the ad "Human Help Wanted" from the window right next to the door, and when the Titans come by for a meal later on, the sign remains gone. But as the Nufu ship reveals itself and the restaurant clients panic, the sign is suddenly back in the same corner of the window, even though it is unlikely that the Nufu Source/Bob would take in more hired help and risk being discovered all too soon.
Deliberate mistake: When the T-Ship is hit from the blast from the exploding space station, it spins around for a while before it re-stabilizes. Just before it does so, look out of Raven's canopy: the background outside with the stars and even a planet spin as the ship does, whereas realistically it should remain calm and stable.
Continuity mistake: In the beginning of the episode, Cyborg is sleeping and the console beside him begins beeping and says "sleep cycle complete". Each beep, a red line on the screen wiggles jaggedly like a heart monitor. But it cuts to a close up during one of these beeps and suddenly the line is not moving half way through the beep, then starts up again after a short delay. (00:00:15)
Continuity mistake: When Starfire asks what is the Maximum 7, her, Robin, Raven, and Beast Boy are standing together looking at Cyborg in a wide shot. Raven is slightly behind Beast Boy but to his right, and her body is facing to her left. But then it cuts to a close shot from in front of the Titans and suddenly Raven is on Beast Boy's left and right beside him, with her body facing her right. (00:03:50)
Continuity mistake: The Titans race to confront Billy Numerous for the first time. When the T-Car skids to a stop in front of Numerous, he just looks at it, startled. But in the very next shot (the close-up of his head) Billy is suddenly jump-cutting to shield his eyes with his right arm. (00:09:25)
Continuity mistake: Once Billy Numerous splits into 10 copies, you see the Titans standing outside the T-Car. The boys are on the ground and the girls, Raven and Star, are hovering above them. It then cuts to a camera move going around the car and suddenly Raven and Star are hovering above the car itself. (00:09:45)
Continuity mistake: When trying to redistribute his power to continue chasing down Billy, Cyborg looks at a bar graph read out on his arm of what is using how much power. The bars are constantly fluctuating back and forth on the close up. But in the angle showing all of Cyborg's torso, his arm is visible with the graph on it, and the bars are not moving. (00:12:40)
Continuity mistake: After Cyborg is hit by the truck, he stands up and sees three Billy copies in the back of it. The one on the right has his arm behind the leg of the one in the middle. It then cuts to a close up and suddenly the one on the right has that same arm out waving at Cyborg. Also the box on the top left has dirt appear in the left corner below the lid. (00:13:25)
Continuity mistake: Cyborg reawakens after being overloaded by the Max 7 and opens his eyes. Robin is standing directly in front of him. But then it cuts to a different angle and suddenly Robin is off to Cyborg's side and he has to turn his head right to look at Robin. (00:17:05)
Continuity mistake: When Starfire is force-fed pie by Mother May-Eye, she swallows a rough clump of pie before pretending to be mind-controlled. But after may-Eye leaves, her tongue evicts a whole pie from her mouth, plate and all.