Problems with #4 and #8. Kicking someone with a good solid side kick or flying roundhouse will not make them fly across the room but it will indeed knock them back a few feet. The person doing the kicking will not be knocked back an equal distance but rather be in the same spot he/she was when they made contact. Movies do exagerate this quite a bit but objects do move. Ooh and the same applies for shooting a large mass with a 12 gauge shotgun at near point blank w/ 3.5" 00 Buckshot.
Now onto the sparking bullets. I have no idea where this individual is from but lead bullets haven't been made in quite some time. Most bullets whether for consumer or military use are copper jacketed with or without a ballistic tip, this applies only to rifle ammunition. Most pistol ammuntion is either full metal jacket or semi-jacketed. Either way the bullet itself is not entirely lead or very little lead if any. This does lend itself to spark when glancing another metal object. Although bullets will not spark as often in real life they do.
Now onto the sparking bullets. I have no idea where this individual is from but lead bullets haven't been made in quite some time. Most bullets whether for consumer or military use are copper jacketed with or without a ballistic tip, this applies only to rifle ammunition. Most pistol ammuntion is either full metal jacket or semi-jacketed. Either way the bullet itself is not entirely lead or very little lead if any. This does lend itself to spark when glancing another metal object. Although bullets will not spark as often in real life they do.