Plastic foot inserted upside-down in artificial Christmas tree. How can I remove plastic foot without breaking it?

The original DS wouldn't have any way of knowing. This only works on the 3DS, because it has an internal gyroscope. That's how it tracks motion in other games, too.

This is one of the few gag evolutions I can think of. The sprites of Malamar and Inkay appear to just be upside-down versions of each other, with the evolved...

Unfortunately, no. Replanting a tree without roots isn't possible and Christmas trees are typically cut down rather than dug up.

It is molting, as it will do every couple of weeks. Make sure not to disturb or feed them when they are trying to molt.

It sounds like he has swim bladder disease or ich. If it is ich, it would be best to quarantine him, since ich is very contagious.

Yes. The tiles don't have to be right side up as long as they connect to the adjacent tile.

You should be able to ship these just like you'd ship any other perishable goods.