Take it to an authorized repair center
Have you tried shooting slower
Without knowing what is broken, we can't tell you how to fix it.
if its a Pokemon gun yes
buy a new screen.........................
If you are asking about Air Soft, then most likely not. But if you are asking about a BB or pellet gun then Yes it is possible depending on the power of the air gun and where you are struck.
A blow gun
Yes if it's a Pellet or BB gun, not airsoft. It is possible.
I suggest the you contact an air gun repair shop to have it fixed. Try looking up "Air gun repair" on the web and have them repair it for you.
You mean Air rifle? See the link below
Best left to a gunsmith.
Do you mean PPK? What's wrong with it?
I would suggest doing a search on Air gun repair and locate someone near you to fix it but. See the attached link below for the diagram of the air gun FEG-01