Why do tower shots disappear when they are destroyed?

Because tower shots aren't energy, they're actually yo-yo's. That's why you can always see the firing line. The tower pulls it back so fast you don't notice it come back. Killing the tower means it can't swing its hand anymore to hit you with the yo-yo.

That mid air shot that should have killed them but they destroy the tower before it hits them so they survive.

magic

To give them a SHOT to survive.

I'm not sorry