Chris Martin revealed he was motivated by a verbal volley from skipper Stephen Fleming before returning career-best figures on day one against Sri Lanka. The paceman said Fleming had told his bowlers in no uncertain terms to raise their game after the drawn first Test.
"It definitely woke us up and made us understand this was an important window we had to take, but I felt I've run in pretty hard all summer," Martin said.
Martin returned 6-54 in Wellington as the visitors were dismissed for 211.
At one stage, there was mention he could have eclipsed Sir Richard Hadlee's 9-52 against Australia in 1985-86, the best Test return by a New Zealander.
But a modest Martin said: "It was far too ahead to be thinking that way but I would have loved seven or eight. That would be quite special."
Martin's first victim was Sri Lanka skipper Marvan Atapattu, who was out for a duck.
Kumar Sangakkara (caught) and Mahela Jayawardene (lbw) fell in the same Martin over, and Sanath Jayasuriya departed soon after fending a ball to Nathan Astle at second slip.
Martin completed his sixth five-wicket haul in Tests when Tillakaratne Dilshan gloved a bouncer to wicket-keeper Brendon McCullum to leave Sri Lanka on 65-5 at lunch.
And he got his sixth when debutant Shantha Kalavithigoda fell for seven.
Thilan Samaraweera made the score respectable with a battling 73, although he survived three dropped catches to record his eighth Test half-century.
New Zealand consolidated their strong position with Craig Cumming and James Marshall guiding New Zealand to 52-0 at stumps.