Setup. A pitch about 25 metres by 20 with a goal or cone goal at each end. Two teams.
How it runs. Move the ball by throwing and catching. You may not run with the ball, and you have three seconds to release it. A dropped catch gives the ball to the other team. To score, a team-mate throws you the ball and you finish with a volley, a half volley or a header. The nearest player of the defending team goes in goal as soon as their team loses the ball.
Make it harder. Catches must be made above head height. Then every third pass has to be with the feet.
With 4 keepers. Two against two.