Goalies are goalkeepers or goaltenders. In the UK footballers who guard the goal are called goalies. Take a look at the natural talent for goalkeeping by this ordinary moggie. There is sound and it can be toggled-on by clicking on the icon bottom-right of the video.
This sort of skill is inherent in most domestic cats. Some won’t bother but if they are young and active a flying object is something to catch, attack, hunt.
I looks like this is a game that the cat and boy play together. The boy tees up the “football” and the cat waits by the sofa. Either of them can start the game off by doing one of those things.
This is an embedded animated gif. At some stage it may disappear as I have no control over its playing. If so I apologise.
Useful tag. Click to see the articles: Cat behavior
That cat is awesome 🙂