Continuity mistake: Just as Slappy gets up from her seat to accept a Friar's Award from Walter Wolf, a drinking glass appears on the table in front of her as the shot changes.
Cat on a Hot Steel Beam - S1-E60
Continuity mistake: In the opening scene where Mindy escapes from the backyard's gate, Buttons naturally runs out to find her. But at some point in this short time, the gate's hinges switch sides.
Continuity mistake: After the Warners find an entrance to the alien spaceship's bridge, the pair of sliding doors behind them closes between shots.
Continuity mistake: When Yakko is multiplying 47 by 83, he walks away from the chalkboard and continues to sing. But one shot before he finishes solving the problem, the answer appears on the board.
Continuity mistake: Before Slappy dumps red hot bolts down Walter Wolf's throat, she holds the bucket differently from one shot to the next - first at the sides, then by its handle.
Continuity mistake: At Carnegie Hall's side exit, Yakko opens the door to find Ms. Nurse ready with a net. For one shot in this sequence, the door vanishes altogether.
Continuity mistake: When Rita is singing out from her cell, a steel window bar goes missing for one shot.
Continuity mistake: On their way to Switzerland, Pinky and Brain discuss a plan to take over the peace summit. As Brain writes on the blackboard, "pop" changes to "drop" in between shots.
Continuity mistake: In the opening pair of shots involving the Warners' audition for a new movie, an extra shelf of shoes appears in the background.
Continuity mistake: After being kicked out of Warner Bros. Studios, Dr. Scratchansniff lands face down outside of the entrance. In one instant he's halfway on the sidewalk, but as soon as the shot changes he's lying fully on the street instead.
Continuity mistake: Yakko originally spins $5,000 on Wheel of Morality, but the needle jumps a few spaces between frames, ultimately landing on 'Trip to Tahiti'.
Continuity mistake: When Dr. Scratchansniff shuts himself in the bathroom to see the Warners goofing off in the tub, his right hand moves away from the doorknob between shots.
De-Zanitized - S1-E3
Continuity mistake: At the start of Dr. Scratchansniff's meeting with Mr. Plotz in the executive boardroom, the number of chairs on either side of the table increases between shots.
Continuity mistake: When the returning Gyp-parody champion makes the game's first selection, cash totals can be seen on each player's podium as though the game were already in progress.
De-Zanitized - S1-E3
Continuity mistake: When Dr. Scratchansniff is using a hand puppet to communicate with the Warners, Yakko changes seating positions between shots.
Four Score and Seven Migraines Ago - S1-E86
Continuity mistake: After reminding Lincoln of his address on Pennsylvania Avenue, Wakko, Yakko and Dot simultaneously change positions between shots, moving closer to a table on the train cabin floor.
Goodfeathers: The Beginning - S1-E20
Continuity mistake: When Bobby and Pesto first meet Squit they begin to mock him. In the background a nearby trash can disappears from the sidewalk.
Continuity mistake: During the road trip to Fort Knox, Brain uses a system of pulleys to operate the minivan's steering wheel. After passing a truck stop, Brain becomes drowsy and in the next shot is seen holding the left pulley handle differently.
Continuity mistake: When Pinky and Brain are sneaking out of Acme Labs to commandeer the red minivan, Pinky's spoon and brown sack both disappear between shots.
Continuity mistake: Towards the end after Dr. Scratchansniff backs his car out into the road, Yakko tells him about next weekend's date. Then, in between shots, the car parks itself on the sidewalk.
Answer: According to the Animaniacs Wikia: "Baloney is one of the few people capable of truly terrifying Yakko, Wakko and Dot, largely due to being impervious to their violently physical brand of humour and his inability to understand how much they despise him."
lionhead