Try putting a blast shield in front of the START screen.
Use a felt marker to color the bullets black as well.
All it needs to be is a 10" square piece of cardboard with a 2" hole in the center of it. Position the hole where you want to place the bullet strike & shoot at the hole as a bullseye.
Allan Quartermain: “Automatic rifles. Who in God's name has automatic rifles”?
Elderly Hunter: “That's dashed unsporting. Probably Belgium.”