Footage of SimuDeck is new footage until you see this shot of the Yellow Ranger, this shot is when it switches to Sentai footage.
This shot of Blue Ranger and Yellow Ranger fighting Craterites in the SimuDeck is when the new footage starts back up.
The shot of the Parachuting Craterites is all Sentai footage which is taken from Megaranger 19.
The footage that Patrick sees directly outside of his bedroom in the middle of the night is Megaranger 14 footage.
The footage Patrick sees of the Craterites in Mrs. Jenkins' place is taken from Megaranger 14 as well.
This is when Sentai footage starts back up, when you see this shot.
However this shot of the Craterites appears to be new footage.
The difference between when Patrick discovers the Police Officer is a "Craterite" and when Patrick's Sentai counterpart discovers it is that in Sentai, the Police Officer was the "King Craterite" in disguise. In Power Rangers, the Police Officer is just a regular Craterite. This is likely because they didn't have the "King Craterite" suit.
Here's another shot of when the new footage of the Craterites starts back up.
The footage goes back to Sentai footage once the Rangeres morph.
This shot is when it goes back to new footage.
This following shot is also new.
This is when the Sentai footage starts back up again, as soon as you see this shot.
This is when the new footage starts back up, when you see this shot of the Black Ranger and Red Ranger.
This shot is when it goes back to being Sentai footage.
Here's when a Craterite is back in new footage once again.
Here's new footage of the Craterites too.
This is when it goes back to Sentai footage, when you see this shot of the Red Ranger.
All following Craterite, Ranger and Astro Megazord footage is Sentai.






Following info comes from Mega 14.
Here's King Craterite.    
Here's a shot of Red Ranger with the Spiral Saber in Booster Mode.
Here's Giant Craterite.    
Here's the Astro Megazord Blaster.