First appearance of the new transportation method call "jetting". Which is flying through in the sky.
Reappearance of the hatchasaurus from season 1 with American footage with live rangers and use of Japanese footage.
In the second fight in zord mode you can tell that it's reusable footage from the season 1 episode Birds of a Feather ". You can tell that when hatchasaurus resemble it self and when it's fight you can see the original megazord being zapped by the horns not the thunder megazord when it actually being hit in a split screen second. Also you can see the original power sword being pull out of the ground instead of the thunder saber.
In the second fight in zord mode you can tell that it's reusable footage from the season 1 episode Birds of a Feather ". You can tell that when hatchasaurus resemble it self and when it's fight you can see the original megazord being zapped with energy fron it horns not the thunder megazord when it actually being hit in a split screen second.