Johnny calls "Wild West Rangers" mistakenly "The Wild, Wild West".
When Zordon's energy wave passes over the five Rangers on Earth they de-morph. But the wave has no effect on Andros when it passes over him.
Andros morphs into the Red Battlized Ranger in civilian clothes. But when the Dark Fortress lands and he comes out with Astronema, he is in is Megaship Uniform.
While in the ship Andros uses his blaster to cause a malfunction when he does he is clearly using one of small toy versions of the blaster but in the next shot he is holding the regular larger prop version.
During the scene where the Space Rangers morph in front of the crowd. Zhane is in Andros' place, where Red Rangers generally stand.
Immediately after the villains have been destroyed, Cassie asks Ashley if she'd heard from Andros, yet they've been fighting together the entire time, so why would Cassie ask?
When revealing themselves to everyone, the rangers yell, "let's rocket!" and morph, but they never typed the codes into their morphers like they always do.
Darkonda's "scroll of nine lives" has only one left unchecked. Yet, up until that scene, we've only seen 6 onscreen deaths for him. Apparently, he's died a few times offscreen (this was a leftover thing due to the removal of a few unfilmed scripts). But a little explaination would've been nice.
When Astronema and Dark Specter are talking, it cuts to a shot behind Dark Specter whilst Darkonda fires the missile (with Dark Specter still talking). When we cut back to the Dark Fortress, it shows Astronema behind a screen, paying no attention to Dark Specter (who was speaking to her literally a second ago).
When running from the spaceships, Zhane falls off his hoverboard and holds on. But in space, there's no gravity, so he'd float, not fall.
During the battle between the Silver Ranger and the vehicular monster, at one point (starts at 13:59 mark) you can seethecamera crews' reflection in the "monster's" windows.
Ashley says the Rangers only have the Astro Megazord left, however they also still have the Mega Winger.
Tankenstein was turned giant in the desert, however the Zord battle took place in a city.
Ecliptor made a big deal about finding location of the Mega Voyager, yet he and Astronema already knew where it was, having been to the Jupiter moonbase in "The Rangers' Mega Voyage."
As Ecliptor fell & exploded, a woman in blue armor with a blue head covering can be seen behind him watching him from a crouching position. (In Megaranger, this was a female villian)
After the Secret City gets destroyed we see the Rangers on the beach in civilian beach clothes, but before they morphed they were on the Astro Megaship and there was no indication that they changed out of their Megaship Uniforms...
For some reason, Psycho Red was shown falling onto M94 despite having simply teleported away from Ecliptor.
Andros said that he heard a clock chiming behind Cassie, but no clock chiming was heard (although there was one in the background).
If Zhane had known about TJ's plan, and the plan was working, what was he hoping to accomplish as disguising himself as Psycho Silver?
For some reason, Psycho Blue didn't pick up on the fact that the real Blue Ranger was the only one using the Astro Axe.