If Andrew Hartford managed to build Mack two years ago with years of memories, there's no reason why he couldn't have rebuilt him again with the same memories, including memories of the past year that are now on the computer when they used Mack's hard drive to recap the events of the season several episodes back in "Way Back When".
Even though they were piloting the Drivemax Megazord (which was riding the Battlefleet), the Rangers called out the name of the Battlefleet Megazord.
Flurious is able to put the crown on his head, despite the fact that the ice crystals on his skull would make that impossible.
The final jewel of the Corona is named as a Pink Emerald, however all Emeralds are green by definition (it's like having 'Yellow Ruby'). There is a real gemstone referred to as a Pink Emerald, however, it is not an Emerald, but rather Morganite.
Given that Vella was originally kidnapped by Crazar (who was a Fearcat), how did she end up as Moltor's prisoner?
Spencer makes the comment about the volcano being uninhabitable, which leads to Mack volunteering to go alone. But as we see, Moltor had Vella prisoner within it. So either it IS inhabitable, or Mercurians can withstand the heat. So why didn't Tyzonn offer to go with him? Similarly, the Rangers had no real problems being in the volcanic area way back in "The Underwater World", did they? Why make it an issue now, when, unlike then, they aren't going to explore but to kick butt?
If Vella is Mercurian, shouldn't she be able to escape from her bindings and cage by turning into mercury?
When Will is about to get back into the first fight with Magmador, Ronny warns him that the monster will copy his Drive Defender. However, Magmador had already done that, and Will went back into the fight with the Drive Defender. Magmador would not waste the time to recopy the same weapon.
Andrew told the Rangers to "take the Megazord" to stop the meteor, but they used the Drivemax Ultrazord instead.
The clips shown during this episode were ostensibly stored within Mack's CPU. However, some of the scenes occurred when Mack wasn't there, or had any other way of knowing what had happened. Also, the clips, if they were recorded by Mack and came from Mack's memory, shouldn't have shown Mack unless he had a mirror with him.
When the Drivemax Megazord is riding the Battlefleet, Tyzonn is able to clearly see Agrios, despite the fact that he is in the Red Ranger zord cockpit, and should have had his view obstructed by the Drivemax's back.
Why did Crazer keep the Tyzonn's morpher on her? Wouldn't it have made more sense to destroy (or at least hide) it?
Several times during this episode (and the next), the wings of Agrios' jet armor bend like rubber.
Before leaving the command center, Ronny calls Benglo "Bengalo".
Tyzonn says that the Octavian Chalice might 'lead to a jewel' rather than 'lead to the jewel' since all but one of the Corona jewels are now accounted for.
When looking at the picture of Andrew and Mack, Dax says that it is strange that Mack doesn't have a shadow. Yet, if you look at the picture, neither does Andrew.
Like the first three jewels of the Corona Aurora, the fourth jewel is not in its original diamond shape seen in "Kick into Overdrive (1)". However, this jewel does have one of the original five colors.
Why didn't Tyzonn summon the Flashpoint Megazord against Datun?
If Kamdor wanted the jewel so much, why did he give up on it once he realized that it had been stolen from him. Also, how come Kamdor didn't realize Ronny stole the jewel right away? It was in his hand, and then not, how could you not notice that?
When did the Florida Everglades get mountains? Better yet, when did FLORIDA get mountains?