Seven a side on a tiny pitch, or 3 a side on a tinier one where keepers can leave goal and attack. The ball runs free: push it ahead, chase it down, tap to pass, hold to shoot, curl it in flight, and send defenders flying.
Human players (any number, keepers too)
Roam follows the ball: you control the nearest free player. Locked keeps you on one position, keeper included. Toggle lock any time in a match.