Supporters barely had time to settle into their seats when a long ball from midfield was flicked on by Alex into the path of Fabinho, who scooped the ball over Jacob Gleeson.
The goal was officially timed at nine seconds, beating Hakan Sukur's 11 second strike for Turkey against Korea Republic at Korea/Japan 2002.
Five minutes later, Brazil were 2-0 up when Lazaro scored from close range.
Brazil almost gifted the Kiwis a route back into the game when Marcelo pushed Chris Wood in the box, but the Flamengo stopper made amends by saving the resultant spot kick.
The Selecao added a third a minute later and once again Alex was the provider, supplying Giuliano, who finished superbly.
Alex earned a hat-trick of assists in the 50th minute when he squared the ball to captain Fabio, who fired home from the edge of the box.
In the 54th minute Alex got the goal his efforts deserved, Lulinha added a sixth from the spot on the hour, before Junior completed the rout three minutes from time.