Continuity: When the Villains send their cronies (for example, Putties, Tengu Warriors, Cogs, Piranhatrons, etc.), their numbers constantly change from when they arrive, to when they leave.

Revealing: In SPD Episode "Sam Part 1" (13-7), when the Ranger first yells "SPD emergency," a piece of Jack's Morpher breaks off.

Factual error: This happens mostly during the early series. Whenever the Rangers throw a flying side kick (the jumping one that they seem to be rather fond of), they do it all wrong. They throw the kick leg out from the start, while the kick is actually thrown with the leg chambered until the moment before impact. Throwing it the way that the Rangers do will jam your leg.

Continuity: When the Rangers morph, the clothes they are wearing don't match what they have been wearing that episode - this also applies to hair.

Continuity: In the 12 series (Power Rangers Dino Thunder), in the episode "White Thunder Part 3", Conner (as the Red Ranger) throws his blaster to the ground whilst fighting the White Ranger, Ethan. In the wide shot, the blaster disappears.

Other: Episode 13-12: "Shadow (2)." When Cruger is challenged to defeat 100 robots, a red countdown meter appears on the screen, ticking down each time Cruger dispatches an opponent. When the counter is at 21, Cruger slices his sword at a robot, which then goes down. But the counter stays at 21 and only goes to 22 when he slices at the next robot. Every robot in the sequence goes down after a single hit from Cruger's sword.

Revealing: The Putties, which Zedd and Rita use as cannon fodder for the Rangers, are made out of clay. When they are hit, chalk appears, to signal that they are being "worn down". When played in slow motion, we see that the chalk is on the Ranger's feet, before they hit the Putties. This is particularly true in closeups.

Factual error: This happens until the end of series 3. Lord Zedd and Rita send down monsters to Angel Grove, in California. Yet when they cast their projectiles down to Earth (for example, with Zedd, a lightning bolt) they are seldom ever aimed even in the American continent.

Revealing: Until the end of the 5th series, we can see part of the Zord costumes move about as the character in them walks about - sometimes they even look like they are going to fall off. This is particularly true in the 2nd series.

Visible crew/equipment: This happens mostly in the first 4 series - crew, lights, and equipment can be seen reflected in the Rangers helmets and visors.

Other: In one episode of Power Rangers Dino Thunder, Ethan is seen playing a game on a computer, Connor comes in and Ethan looks away from the computer to talk to him. The game Ethan was playing is still going, but Ethan has stopped playing, obviously a demo.

Revealing: When one of Rita's monsters tears a building apart, the buildings are completely hollow, and nothing more than 6 pieces of Styrofoam stuck together to look like a building.

Plot hole: Up until about Green With Evil, we can see the Rangers fighting Super Putties, which didn't come into the Series until after Green With Evil.

Audio problem: Rita is dubbed over extremely poorly - her words don't match her mouth.

Deliberate "mistake": In fight scenes, the Yellow Ranger's stature matches that of a male (and not Trini). This is because in the Japanese version of the show, the Yellow Ranger was played by a man.

Continuity: When the Megazord is in Tank mode, the Mastidon's head section is attached to the center of the Zord. But when the Zord begins to stand up and form the Megazord, the Mastidon head section is gone.

Continuity: The clips on the side of the Rangers helmets constantly disappear and reappear.

Deliberate "mistake": When we see the Dragonzord, Tommy is sometimes standing on top of it. However, it is completely obvious that "Tommy" is nothing more than a small plastic figure.

Continuity: When the Dinozords are called, they emerge from their hiding places, and assemble in a line, before formed Megazord Tank mode. During this time, it is a completely rocky background. After the Sabre-toothed tiger assembles, we cut to the Triceratops - which is now assembling in a completely desert-like environment. It then switches back to the rocky environment.

Continuity: When in Tank mode and Megazord mode, the order in which the Rangers sit is: Billy, Trini, Jason, Kim, Zach. When switching between Tank mode and Megazord mode, Trini and Kim are switched - they are then back to their original seats once the Megazord has been formed.