WARNING: The following contains spoilers for Spider-Man: No Way Home, now playing in theaters.
In Spider-Man: No Way Home, Peter Parker (Tom Holland) found himself up against a wall trying to stop the multitude of villains, who came over from Sony's original Spider-Verse due to a multiversal breach. Thankfully, he had help from Ned and MJ in corralling the tyrants, which led to him crafting a hopeful plan to cure them before sending them back to their respective realities. However, as Peter's plan fell apart, it must be noted the movie failed to utilize his best weapon, in what could have prevented his life from being plunged into further tragedy.
When Peter took the villains to Happy's home, the idea was to cure them using Tony Stark's tech, so they wouldn't be killed by their respective Spider-Men once they got home. However, Norman Osborn broke bad, revealing the Green Goblin was in control, causing a battle to break out with Electro, the Lizard, Sandman and Doc Ock. Unfortunately, Aunt May died in the melee, shattering Peter's heart.
It led to the other Spideys coming over to help out, culminating in a big brawl at the Statue of Liberty as they had to lure the goons out in a trap to cure them, but this could have been avoided had Peter used his spider-tracers, something the comics and cartoons often employed when Spidey needed a more stealthy plan. He already utilized this tool in the Marvel Cinematic Universe when he had to track the second Shocker in Homecoming. This allowed Peter to become the hunter, not the hunted, and as such, he could have gone on the offense with this team. Admittedly, it would have been tough for one to stay on Electro, Sandman and Lizard given the nature of their skin and powers, or even Doc Ock whose body was in tune with tech, but a tracking device on Goblin would have done the trick.
As Goblin was the mastermind, the Spider-Men would have been able to prey and web him up rather than request a rumble over the news at the Statue. It'd have been a much less dangerous mission, as they'd have the advantage if Goblin didn't discover the tracker, allowing them to use the leader as bait to snatch the others.
It'd have kept Ned and MJ out of trouble too, and with much less chaos around, this would allow Strange and Peter to exhibit patience and composure. Thus, they could have worked out a final spell that may not have needed to erase Spider-Man's identity from the MCU, keeping some measure of order in Pete's life.
To see how the trackers were missed in action, Spider-Man: No Way Home is in theaters now.
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