The Wonder Woman doll's colors are on the wrong side. Red is supposed to be top and blue on bottom.
Green Beetle tells Blue Beetle to set his sonic cannon to 27 angstroms. Angstroms are a measure of electromagnetic radiation, not sound.
Trivia: Among the Golden Age costumes in the Hall of Justice are: Firebrand, Wildcat, Green Lantern (Alan Scott), the Red Bee, the Flash (Jay Garrick), and Sandman. The Amazo android is also on display.
When Cheshire and Red Arrow land in the bell tower, Red Arrow's left hand is bare in one shot and then instantly covered in a glove in the next shot.
In the escape from the hideout, Wonder Woman grabs Lagoon Boy and Wonder Girl grabs Aquaman. However, when they landed at the bioship, Wonder Woman is holding onto Aquaman and Wonder Girl is holding onto Lagoon Boy.
When Zatanna teleports in, Black Canary is standing in front of Young Justice, and Miss Martian is no longer in sight. When Zatara introduces his daughter a second later, Miss Martian is suddenly immediately to Black Canary's left. Then Miss Martian flies down from above in the next shot and Black Canary is nowhere in sight.
When the episode cuts to the vines attacking a bridge, the initial caption identifies the city as Star City. However, when Black Canary jumps onto a school bus, it has "Metropolis" on the side. In the current comic continuity, the two cities are on opposite sides of the U.S.
The Taipei 101 shown appears to be built in three segments, compared to eight in the real-life version.
When Miss Martian is restoring Superboy's memories if you slow it down frame by frame you get to see her as a White Martian before the episode "Insecurity."
When Miss Martian is restoring Superboy's memories, there is a memory of her as a cheerleader than hasn't happened yet, since they haven't attended school yet.
Trivia: The birthday of the Golden Age Flash, Jay Garrick, is August 27.
As Robin destroys the Fog from the cafeteria, the computer screen displays a list of prices. The total should add up to $8.63 instead of $8.93 as displayed.
When Kid Flash enters Mount Justice, a map of USA and Mexico can be seen. The Mexican coastline facing the Pacific, particularly at the bottom of the map, is incorrectly drawn.
When Aqualad is attacked by Black Spider, the surface markings on the nearby road disappear.
As the trucks carrying the android parts are dispatched, the road surface markings at the center are initially colored white. This changes to yellow in the next shot.
At the very first scene of the the episode in Metropolis, there are only three towers on the suspension bridge. This increases to four when Superman arrives at the scene.
When Kobra and Shimmer pursued Robin to the helipad, Kobra was first seen standing in the center of it. But at the next shot, he was at the edge of the helipad.
Compared to a bird-eye view of Happy Harbor when Mr. Twister was attacking the town, the same view when Miss Martian (disguised as Red Tornado) arrives has the following differences:
1. There were originally a row of 5 buildings in the first view, one of them already destroyed. But the next view only showed 4 buildings clustered side by side.
2. The number of rings encircling the fountain increased from 1 to 3.
3. The fountain has a bigger and thinner base.
4. The gazebo and the path which connects to it disappeared.
Right at the beginning of the episode, you can see a full moon on the top-left corner. However it would not be possible as the full moon can also be seen in the previous episode "Fireworks," which occurred 13 days ago.
When the Young Justice team is defeated by Mr. Twister outside the power plant, you can see a small forest to the right of the fallen heroes, which disappears later in the episode.