This is the third and final time Billy has faced his evil double. The first time was in Season 1's "A Bad Reflection on You" then again in "Mighty Morphin Mutants".
When the rangers drew their blade blasters, all of them had 'Zyuranger' written on the barrel apart from one which read 'Power Rangers'.
Both Blue Rangers are shown to have a separate Power Coin and Morpher, however they only used the one to morph.
Billy and Evil Billy's sports vest changed from being a Nike vest to an unknown brand one.
When Billy couldn't find his communicator, the shot was reversed, because he was looking at his right wrist.
When Kimberly first shows the gang the coins, the shimmer with their respective colors. (Tyranno=red, Tricera=blue, etc.), but when the second shot of the box is shown, the shot of the coins is reversed, so the tiger and tyranno colors have switched as well as the tricera and mastodon colors.
While in the Command Center, the Rangers never mention the green slime which was the reason they had teleported there in the first place.
Where exactly did Alpha get the colored pencils. He just picked them up from the console, as if they were set there the entire time.
When the drawing the toys into the book, Aisha used one colored pencil to draw the toys, which were several different colors, and her strokes did not match the drawing in effect.
How exactly can Rita be "old friends" with Mondo the Magician? He's a fictional character, not an alien being.
When the Tigerzord punches the Thunder Megazord, the Tigerzord can also be seen behind the Megazord taking damage as well.
The Rangers call for Megazord Power and the Power Sword instead of Thunder Megazord Power and the Thunder Saber.
How was Rita able to convert the Tigerzord to Warrior mode without inserting Saba into the console slot in the Tigerzord cockpit?
When the Thunder Megazord uses it's Thunder Saber to battle the Tigerzord, it's sheath is missing.
Tommy tells the Green Ranger that Rita & Zedd have never been able to turn him evil. He must've forgotten about his time as the evil Green Ranger, and when he was temporarily turned evil by Zedd
When the Wizard was defeated the Green Ranger became good, since the Dragonzord was turned evil by the wizard, wouldn't he have turned good right away too?
When Zordon contacts Tommy when he's fighting the Green Ranger, he holds up his right hand. The Rangers all wear their communicators on their left.
As the Green Ranger flies through the air to kick a rat monster, the wires he is suspended from are visible.
Billy claims he and his three teammates can't Morph because they "traveled back before they met Zordon and don't have powers yet", but as seen in "Wild West Rangers" and other episodes, going back before meeting Zordon doesn't prevent power use. In actuality, at this particular time period, Zordon, Alpha, and the Command Center were all dormant, and thus the Morphin Grid was inactive.
After Green Ranger (Tommy's clone) teleported out of the Command Center, there was a control panel damaged, yet he didn't destroyed anything! (This was stock footage from Green With Evil, Part 1)