New Zealand's final Rugby World Cup dress rehearsal was more like a training session as the defending champions demolished Tonga 92-7 in an ominous warning before the showpiece tournament.

The All Blacks fell just short of 100 points in a merciless display against Tonga in Hamilton, where New Zealand scored 14 tries to one on Saturday.

Tonga managed to get on the board late in the one-sided game, but it was all about New Zealand, who were led by winger George Bridge's four tries at Waikato Stadium.

Ben Smith, Ryan Crotty and Sevu Reece also had two tries apiece, while Beauden Barrett had seven conversions.

Steve Hansen's All Blacks will now jet off for Japan before they open their World Cup defence against South Africa on September 21.

Playing their first day-time Test in New Zealand since the 2011 World Cup, the All Blacks were a class above from the outset following Reece's opening try in the eighth minute.

Reece danced his way through Tonga's defence, but no one would have imagined the rout to come as the All Blacks ran in eight tries for a demoralising 54-0 half-time lead.

New Zealand – who beat Tonga 47-9 in their last encounter at the 2015 World Cup – did not take their foot off the pedal in the second half, with records in sight.

Bridge came within touching distance of Marc Ellis' record of six in a match, which he set at the 1995 World Cup against Japan, as he became the 13th All Black to score four tries in a Test.

The second half started with Bridge catching the ball from the restart and crossing after just nine seconds in a forgettable moment for Tonga.

New Zealand added another 38 points in the second 40 minutes and while Siale Piutau recorded a five-pointer for the visitors, Tonga were condemned to their second heaviest loss to the All Blacks following the 102-0 humiliation in 2000.