Setup. One goal. Everyone starts with three lives. Shots are taken from a line 12 metres out.
How it runs. One keeper in goal, the next in line shoots. If you score, the keeper loses a life. If the keeper saves it, you lose a life. If the keeper holds it cleanly, they also win a life back, up to three. Then the shooter goes in goal. A parried ball is live: the shooter can finish the rebound. Last keeper with a life left wins.
Make it harder. Shots are first time from a pass. Then every shooter has to use their weaker foot.
With 4 keepers. Three lives each.