But, far more relevantly, he did so in front of Mateo, his son who was born prematurely, requiring his father to spend long spells of last season "commuting" to his Valencia home to be with his family. Snippets of a touchline row with then Arsenal boss Arsene Wenger during that game are also shown, as is some footage of the tunnel fracas during City's shock FA Cup loss to Wigan. "Of course, he was so motivated because his family, parents, wife, and especially Mateo were here".
Though consistently prolific, City's all-time top scorer has not always been a Guardiola favourite and started just 22 league matches last term.
The opening goal of the game arrived from a familiar source as Aguero wriggled free after a wonderful ball over the top from City's goalkeeper Ederson.
City had 14 shots on target during the 90 minutes, and hat-trick hero Aguero had four of those, and it was to be Aguero's ninth Premier League hat-trick, and he is now only two behind Alan Shearer, who holds the record on 11.
The Argentine's clinical hat-trick helped the champions swat Huddersfield aside and preserve their 100 per cent start to the new season.
Jesus added a second six minutes later following good work from Benjamin Mendy and when the Frenchman delivered a cross that Hamer fumbled, Aguero accepted the gift to score City's third.
Pep Guardiola's champions opened their home campaign with a pre-match display of ticker tape and exploding fireworks and Aguero continued the pyrotechnics on the field.
Higher US tariffs on steel imports from Turkey take effect
Although Mr Erdogan struck a defiant tone, his foreign ministry called for diplomacy and dialogue to solve problems with the US. Independent analysts argue the central bank should instead raise rates to tame inflation and support the currency.
After not scoring last weekend, AGUERO scored his first of the season with a chip off his left foot from outside of the area to give City a 1-0 lead.
"Mendy is Mendy. Sometimes we want to kill him and sometimes you think, wow, what a player we have", Guardiola said.
Unbeaten Watford are alongside City as joint leaders after an eye-catching win at Burnley, who have gone seven league games without a win, following early second half strikes from captain Troy Deeney and Will Hughes.
At the final whistle, Aguero said: "Hat-trick number 13? Wow".
Jon Gorenc Stankovic - making his first appearance in 17 months due to a knee injury sustained at this ground - netted Huddersfield's consolation goal, but David Wagner's team face the prospect of a tough second season among English football's elite. I never saw him like this since I was here, he is in an incredible condition with the ball and without the ball.