Pete Alonso started the offensive fireworks early with a three-run blast over the center field wall to give the Amazin's a huge early spark in the first off John Flaherty.
Started David Peterson pulled a Houdini act in the top of the inning by escaping a first and third, no-out jam and didn't allow a run to score.
The Mets piled on another five runs in the third with Starling Marte, Francisco Alvarez, Francisco Lindor and Brandon Nimmo all clinching RBI hits.
Andy Pages homered to cut a massive lead to 8-2 in the top of the fourth and the Mets answered back with two in the bottom of the frame.
Pages blasted a three run shot in the fifth to cut the lead to 10-5.
Then, Mookie Betts launched a solo bomb to shrink the lead to four runs in the top of the sixth but a Jeff McNeil sacrifice fly gave the Mets an 11-6 advantage.
Marte's eighth inning single to plate Alonso was the last run of the game as Edwin Diaz pitched two scoreless innings to secure the win.
On a day when Betts promised haymakers to the Mets, it was the Orange and Blue knocking the Dodgers out.
Game 6's first pitch is set for Sunday at 8:08 with Sean Manaea taking on a litany of Los Angeles bullpen arms at Dodger Stadium.