GunBound happened in 2005.
It strictly means Gunbound World Champion which is the international version of Gunbound. It is a little different from the ijji version of Gunbound Revolution. GBWC2006 is a international competition organised by the Gunbound community which was held in Korea in 2006.
GunBound was created in 2005-06.
gamerzneeds.com
yes
Yes, my norton security detected something wrong with it.
kick the ball around
Yes there are a lot of gun games for the Mac. Get a Mac. 
Impossible!
If the 'kick' is intentional, it is an illegal kick penalty. If it is unintentional, it is a fumble.
http://www.hacksantana.com/index.php?PHPSESSID=17faee4439ae0b0d45412c7c8ead064e&topic=3443.0
Depending on how vulnerable your computer is, and where you play it at (the original site) it does have virus.