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.
Suggested correction: It's not hard to believe that Starfire's tongue has the ability to retrieve things from her stomach. As she is an alien who has multiple stomachs and many strange qualities.
Continuity mistake: Right after Beastboy "pulls the red candy cane thingamahoozit", and the T-ship flies toward the screen, Cyborg's hands and forearms are visible, even though they aren't found until the end of the episode.
Continuity mistake: Starfire manages to keep away the pies Mother Mae-Eye is force-feeding her, even to the point that her lips are kept clean. But when Mae-Eye sends in the Turbo Love 3000 XL mega pie, Starfire's mouth is suddenly stained with pie filling.
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 Mother Mae-Eye beds the Titans down in the pie plate, we can see the cushions being close together, forming a closed line. But when Mae-Eye says good night to each Titan in turn, the cushions behind each Titan are isolated from one another.
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: 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: 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: 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: 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: 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.
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: When Robin faces the Outworld Outlaw, he is still wearing his water skiing life jacket. But when the Outlaw is distracted by the grizzly and Robin moves in for the punch, the life jacket has suddenly turned into his costume's shirt again.
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: The high building behind the Mega Meaty Meat is revealed to be the Source's mothership when the facade peels away. But in later scenes it still has the facade on, still looking like the tall building from before.
Continuity mistake: After Mae-Eye is banished back into the pie, the Titans assemble around it to ponder its fate. In the shots where we can only see their feet, they are positioned (clockwise, starting at 1 o'clock): Beast Boy, Starfire, Robin, Cyborg, Raven (who takes Silkie's place). But when we see their faces from the ground up, their positions are (taking the new perspective into account): Beast Boy, Robin, Starfire, Cyborg, Raven - on the whole meaning that Robin and Starfire switch places from one cut to the other, and back again.
Continuity mistake: In the black and white family series, Beast Boy consumes half of an enormous stack of flapjacks. But when 7-Gorn-7 (literally) gate-crashes the homely scene, the stack of pancakes he disintegrates is taller than it was before.
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.