Darry said the Eden Park opportunity was an excellent test for the All Blacks to see what they're made of.
After the 30-38 first Test loss and the post-match review, he said, "We're clear with how we wanted to play and how we want to play. There're a few things we want to tweak, but there are also a lot of things we're happy with that we built well from the English Tests and the Fiji Test and into last week."
They had to be careful not to throw the baby out with the bath water. They know what works for them, and they will stick with it.
At the same time, there were things to tweak and allow them to do better.
"We had a good long session today and a good review. We're feeling good coming off the grass and feel confident heading to Saturday."
Darry, who has advanced quickly after being called into the squad as injury cover to make his starting debut, said it had been everything he expected and better.
"Once you taste this environment, it's quite addictive. You want to come back in and get back into the swing of things.
The biggest lesson he has had so far has been the fine margins in games.
"You're half a second too late, half a second too early, or you miss something in the flow-on and the repercussions of that.
"The importance of those moments in other games, you might be able to get away with it if you are slightly off but, as we saw, the ball bounces one way and you're not there, they pounce on it and it is a try down the other end."
It hurt to be part of the loss to Argentina, but he knows how much the team means to New Zealand.
Darry said his area of expertise, the lineout, functioned well until the end of the game, but they had worked on that. They also admitted Argentina had caught them out with a variation on the All Blacks' line, but they had looked at that also.
But Darry said there was a danger in focusing too much on what went wrong.
"There's a lot of stuff we did really well. We do make a few tweaks, but we also hone in on what we do well and focus on that."
The opening try scorer for the side last week said he was 30 metres back when the ball was centre-kicked.
"I was lucky; the ball bounced a couple of times. I was lagging, but it was the right place, the right time. The bounce of the rugby ball was a crazy thing, but it worked in my favour that time."