Simon Bridges has let rip in Parliament, labelling MPs "clowns" and taking aim at Winston Peters over Pike River.
Bridges, leader of the National Party, used his speech in Parliament on Wednesday to attack the Government over its policies saying "absolutely nothing" had been achieved.
"The clowns on the other side think that somehow it's a bad thing if we highlight in the year of delivery that they've got no plans, no policies - they've achieved absolutely nothing."
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Bridges took aim at Deputy Prime Minister and New Zealand First leader Winston Peters over his promise to be the first person to re-enter the Pike River mine.
"And there's Winston Peters putting around a bit of paper like he's a tough, clever guy, but here's what we've learnt this afternoon - number one, he's too scared to go into Pike River mine."
Bridges also reignited his ridicule of Peters over accusations he fell asleep during a top-level conference in Turkey last month.
"But what we've also learnt is that [Peters] still sleeps on the job," he said, accusing Peters of falling asleep during in Parliament on Wednesday. "Cat-napping works, according to Winston Peters."
But Peters wasn't the only New Zealand First MP to be grilled. Bridges labelled Defence Minister Ron Mark a "muppet" and said he's been "the poorest Defence Minister New Zealand's ever seen".
Shane Jones, a New Zealand First MP and Regional Economic Minister, was next. Bridges said his "sole contribution as Minister of Regional Development so far is a roundabout to his house that hasn't been built".
Also in the firing line was Labour MP and Corrections Minister Kelvin Davis, who Bridges took aim at over Corrections spending over $1 million purchasing 193 ice slushie machines for their staff.
"What has the Government delivered? Slushies!" Bridges exclaimed in Parliament. He then ridiculed Finance Minister Grant Robertson, saying: "Grant Robertson drank them all!"
Bridges is no stranger to controversy in Parliament. In December last year, House Speaker Trevor Mallard labelled the National leader a "smart-arse".
In another incident in December, Bridges and National MP Gerry Brownlee were both asked to leave the House by Mallard, prompting a National Party walk-out in protest.
And more recently, Bridges was ordered by Mallard to apologise twice, prompting Bridges to tweet: "I think I just made history."