Timo Werner unleashed the turbo jets and gave Chelsea a glimpse of the future.
A wonder goal for Reece James, a glimpse of exciting new signings and familiar defensive frailties plus their dodgy keeper Kepa Arrizabalaga with another howler.
Strap yourselves in because this is going to be a white knuckle ride for Chelsea when they might end up just going all-out attack and trying to outscore the opposition. Who needs to defend anyway?
You have to feel sorry for Brighton because they were excellent, did not deserve to lose by a 3-1 margin and, heartbreakingly, their new signing Adam Lallana lasted just 44 minutes into his debut.
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Chelsea have been active this summer, signing Kai Havertz, Timo Werner, Ben Chilwell, Hakim Ziyech, Malang Sarr and Thiago Silva.
However, one player who continues to be linked with the Blues is West Ham and England midfielder Declan Rice.
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Lallana had such bad luck with injuries at Liverpool that he must have been hoping for a fresh start and yet it ended in such disappointing fashion as he looked close to tears when he hobbled off.
But Brighton still provided Chelsea with a serious cross examination as young right back Tariq Lamptey was outstanding again, Ben White looked good at centre half and they will surely make strides again this season.
So for Chelsea to leave the AmEx with all three points will be a huge boost for Frank Lampard as he knows the pressure will be on after his £200m summer spending spree.
Werner and Kai Havertz were the only big summer acquisitions to start because of injuries and fitness issues but they looked good and will make a big difference this season.
Havertz was £70m and is less direct and dynamic than Werner but there were nice touches of class from a player rated in Germany as one of their very best prospects.
Werner is already well established and you could see why after just 21 minutes. Brighton midfielder Steven Alzate’s clumsy square ball fell to Jorginho whose slick first time pass sent Werner away.
The Germany striker sprinted clear, rounded Brighton keeper Mat Ryan only to be pulled back for an obvious penalty. Up stepped Jorginho to send Ryan the wrong way and Chelsea were ahead.
Brighton did not give up, Lamptey was lively down the right, Werner went close and then Lallana hobbled off. It was not going the home side’s way.
But Brighton got themselves level after 54 minutes and it was no more than they deserved as they pushed Chelsea backwards, kept passing and Lamptey’s assist set up Leandro Trossard and he unleashed a diagonal 20 yard shot.
The ball squirmed under Arrizabalaga’s despairing dive and yet again the Chelsea keeper should have done better. He cost £71m, they clearly do not want to give up on him but he will cost them dear unless they buy again – and quick.
But, incredibly, Chelsea took 100 seconds to regain their lead just as you were beginning to pick away at their failings. Ruben Loftus-Cheek was poor, Mason Mount disappointing and James struggled defensively.
But James had the perfect answer as he bolted forward and from 25 yards out smashed his first Premier League goal. What an incredible strike to show that England have a wealth of right back options.
Lewis Dunk could have made it 2-2 from a Trossard cross as Chelsea’s defence went AWOL again and they needed a third goal for insurance.
Another duly followed as James took a right wing corner, Kurt Zouma smashed a shot towards goal, it took a wicked deflection off Adam Webster and wrong footed Ryan to get Chelsea off to a winning start.