Seamer Jacob Duffy claimed a maiden five-wicket haul to secure New Zealand a handy first innings lead and the upper hand on Day 2 of the opening Test against West Indies at Christchurch's Hagley Oval on Wednesday.
Duffy claimed 5/34 to help bundle out West Indies for 167 in a spectacular collapse from 100/2 at one stage.
Opener Tagenarine Chanderpaul and Shai Hope made half-centuries in their otherwise feeble reply to New Zealand's first innings total of 231.
New Zealand finished a stop-start day two on 32 for no loss, for an overall lead of 96 runs.
Tom Latham (14) and Devon Conway (15) will come out on Thursday hoping to bat West Indies out of the contest.
Earlier, New Zealand took two early wickets when the track looked lively but Hope and Chanderpaul put on 90
"Obviously they got a bit of a partnership going, we knew they would at some stage, and it coincided with the ball stopping swinging," all-rounder Foulkes said afterwards.
"Duff has taken on that enforcer role, which is awesome. It's great to see. And then we actually saw it swing again at the end, which was interesting."