You run the tank stand at the far end of the lot. Fans wander in wanting a balloon — keep them floating, or they'll crowd your tanks and you'll lose one.
↑ ↓ or W / S — move between the 4 lanes
Space — launch a balloon down your lane
Catch each hippie before they reach your stand. Clear waves to speed up the crowd.
Watch for cops in navy — float one a balloon and you'll get busted. Let them walk on by instead.