Osu Tatakae Ouendan/Fridge

Fridge Logic:

 * How did the Ouendan get back from Ancient Egypt?
 * How do levels that take place more than one days work? Do they take a break or is it an actual cheer marathon?

Fridge Horror:

 * Part of the entire map in the first game gets reused in the second, although a couple of changes were made to the surrounding area. Was it because of the Time Skip... or something different?