When Lord Zedd, Rita, Goldar, and Mordant arrive at the construction site to resurrect Ivan, Lord Zedd proceeds to knock out two guards sitting near the egg. After this Mordant's reply is "Yeah I could do that. I just choose not to." Goldar then tells Mordant to be quiet, but if you closely at Mordant's mouth when Goldar tells him this, it's still moving after, but no sound is coming out.
During the scene where the Rangers receive the animal spirits and their powers at the temple you can see Billy and Adam's animal spirits are mixed. The golden glowing animal spirit of the the wolf flies around Adam, and the frog around Billy.
When the Rangers surround Zordon's tube, they leave their helmets along the front of the edge of the crystal bed, but when the Rangers' symbols project, each Ranger has their helmet directly in front of them; in the overhead shot of the Rangers' symbols merging on Zordon, the helmets are nowhere to be seen.
Soon after Aisha is cornered by the dinosaur skeleton in the jungle, we can see her running away off to the side, and when we do, we see a large stain of mud on one side of her buttock. However, in later shots, we see it has completely disappeared.
When Alpha 5 fixes the viewing globe, the command center has been wrecked for a while and all the lights are off. However when we see the news report and Ivan's Ooze commercial, you can clearly see the wall lights are on and the neon columns can be seen glowing in the reflection of the globe. This shot was probably originally intended for a scene that was cut from the final film.
When the teens jump over something while rollerblading, they land in a different order from which they had jumped: Billy jumps first but lands third, behind Tommy and Kimberly. Additionally, when the teens jump down into the construction site, their order again changes, with Aisha (absent during the jump) landing between Billy and Rocky.
When the Power Rangers are about to defeat the Ooze Men, there is a close up scene where three of the Rangers flip backwards to a platform in the following order - Kimberly the Pink Ranger, Rocky the Red Ranger and Adam the Black Ranger. When Rocky and Adam land on the platform, Rocky is to the right of Adam and is about to land next to Kimberly. However, when Tommy, the White Ranger flips down and lands on the platform with the other Rangers, Adam is suddenly standing beside Kimberly instead and Rocky is standing to the left of Adam.
As Fred spies on the zombified parents in the chemical plant, a large, mechanical leg is seen being lifted through the room to another, body-less leg. Less than twenty seconds later, Goldar announces that construction is completed.
At the end of the first scene (skydiving), Bulk and Skull land in a construction site. A worker goes over to them and starts talking. At this time the guys still have their parachutes on. It then cuts to the worker and back to them and now, not only are their parachutes off, they are nowhere to be seen.
When Ivan tells the parents to leap to their death, they all drop their boxes on the floor, but when it shows Fred's father, they are holding the boxes, then when it shows them walking out there are not any boxes on the floor.
When the first stone warrior comes to life from on the wall, he uses two hand axes to cut at Tommy, succeeding in slicing his shirt several times. However, in later scenes, the tears in Tommy's shirt have disappeared.
As Ivan Ooze emerges from his egg, he is in an ooze form. When shots of Lord Zedd and Goldar are shown, it shows Ivan Ooze rising normally to the left, no ooze is apparent. It then goes on to show Ooze in ooze form before re-figuring himself.
When we first see the walking bug machine, we see a couple running away, holding each others hands. But when we first see the Scorpitron, two cars, a yellow one and a white one crash into each other below it. The same couple is seen getting out of the white car.
When Skull and Bulk are getting ready to leap from the plane, they haphazardly throw on the parachutes, never closing the buckles on the harness (which are open as they fall out the plane). But when seen in the next shot, they are securely buckled in.
When the rangers arrive at the construction site (after Ivan Ooze has been released) they are approached by a security guard (Ivan Ooze in disguise). He asks, "What are you kids doing here?", in an Australian accent. Kimberley responds with, "You haven't by any chance seen a morphological being around here?". The guard then changes accents to American when he says, "Morphological being?", then switches back to Australian and says, "What the heck is that? Wait a second, did it look something like this?"
When the big robot is coming together, when the ape and wolf robots are attaching themselves to the bear robot to make the torso you can see the crane robot head already in place, then in the next scene the crane robot is forming the head and placing it's self on the shoulders completing the big robot.
During the battle with the skeletal Triceratops on Phaedos, Tommy runs up the tree and flips onto its back. After Billy yells 'Tommy!' the camera goes back to Tommy as the dinosaur lurches to the left. At this point (roughly 0:59:57) a crew member is clearly visible on the left side of the screen. He even appears to put his hands out as to protect himself from the flailing mechanical dinosaur.
In the interior scenes where Rocky, the Red Ranger is sitting at the controls of his Ape Ninja Zord, the doors are initially shut. However, in the side view of the close-up shots, the doors to the control room are open and camera cables leading out to the hallway are visible on the floor in the doorway.
Various Sydney landmarks can be seen throughout the movie (although the Centrepoint Tower and the Monorail play major roles). There are also some cars that have right-hand steering wheels despite the story being set in California, and some Australian model traffic lights (foot-long black cover with a gray pole) can be seen when the Scorpion bot destroys a car in front of the rangers.
When Fred's dad is seen arriving back at his house before he is "Oozed," it is clear that the Toyota SUV he is driving is right hand drive, concurrent with the film being shot in Australia. However, when he gets out of the SUV, he exits from the left side, and a quick interior shot shows that there is no steering wheel on that side; just a regular passenger-side dash.
Although clearly done for humorous purposes, when Ivan Ooze is about to destroy the Command Center, he laments over missing the Black Plague, Spanish Inquisition, and Brady Bunch Reunion, because he was trapped for 6,000 years. However, he had only just mentioned he'd been "10 minutes out of the egg." He couldn't have learned about these things in such a short time after his release.
After the egg opens and the ooze is coming together to form Ivan Ooze, you can see the actor slowing standing up in the close-up shots off to the left, even though he hasn't fully formed until after the ooze comes together ten seconds later.
In the battle with the Ectomorphicons, as Rocky jumps from the rooftop, the view inside his Zord shows that the taller Ectomorphicon is standing on the animation grid, instead of the streets; showing that it wasn't fully rendered.
Right before the Rangers lose their powers, Tommy (the White Ranger) calls out for Saba. As Saba appears in his hands, the shot of the Rangers noticeably jumps and changes angles slightly, indicating that the scene was stopped and restarted so Saba could be placed in Tommy's hand.
When Ivan Ooze's bug monster smashes the Bear Zord (Yellow Ranger) into the side of a building, the bear changes color to blue, then back to yellow in the next shot. Bear Zord is only yellow color, not blue.
The goof items below may give away important plot points.
When the interiors of the Command Center are being restored in the finale, we see one of the neon-ringed columns is lying broken on the gantry to the console ring and the lights of the Command Center turn back on when it stands up and fixes itself. However, in the next shot when we see the robot Alpha 5 looking at his hands, the lights are off again and in the background we can see that the column is still lying broken on the gantry.