Young, who bagged a spectacular brace to register his first goals for the Reds, hailed the verve and voracity with which the Gunners were emphatically put to the sword at Old Trafford.
"We went about our job from the first minute all the way through to the last," Young told MUTV. "We were terrific today. We found an Arsenal team who weren’t so good on the day and we’ve punished them.
"You see the way we go forward at pace and we’re always looking to create chances from the first minute right to the end. We were terrific today, from the goalkeeper to the front man. It was a great team performance and hopefully we can continue that form we’ve shown so far and take that right the way through the season."
The winger reserved special praise for hat-trick hero Wayne Rooney, and goalkeeper David De Gea, whose penalty save moments before Young's first goal ultimately proved to be a decisive moment in the game.
"The boys are delighted for him (Rooney) to get the hat-trick," he said. "I think he even wanted to give up the penalty to Giggsy, which just shows what kind of person he is and it was brilliant for him."
"It was a great save," he added, of De Gea's vital stop from Robin van Persie. "We’ve seen it in training, how good he is, and he’s shown it again today. The penalty save was terrific and throughout the game he did great."