He also faces a charge of dishonestly taking a police car and another of dishonestly taking a Ford Telstar.
Kohu's lawyer, Debbie Goodlet, did not request name suppression.
She argued against media applications to take photos or video of her client, but Judge David Cameron allowed photos to be taken.
Kohu's co-defendants were brought to the dock one by one.
Aroha Kohu, 39, Hemi Kohu, 17, and Melissa Vaka, 17, are each charged with dishonestly getting into the stolen Telstar and knowingly using a firearm against police.
Hereina Paul, 22, faces the same charges, as well as a charge of dishonestly getting into the stolen police car.
Carlos Bushell, 28, is charged with knowingly helping Dolphy Kohu avoid arrest.
Dolphy Kohu was remanded in custody until September 9. The others were bailed to central North Island addresses until the same date.
Judge Cameron told Paul: "You're fortunate to be granted bail."
Members of the public gallery kept quiet for most of the hearing.
Meanwhile, police arrested a seventh person in relation to the incident yesterday.
The 24-year-old man was arrested at an Ohakune address just after midday.
He has been charged with unlawfully getting into a motor vehicle and being a party to using a firearm against police.
He is to appear in Whanganui District Court today.
Earlier, a man appealed to the public to pronounce Dolphy Kohu's name correctly.
He made his comments at the court yesterday morning, asking people to stop "bastardising" the family name Kohu and saying it should be pronounced "Core-who".
As he left the court he said he would get his lawyers on to people who continued mispronouncing the name. A legal letter was distributed to journalists at the court.
He urged those reporting the case to learn te reo, because mispronunciation of surnames could be insulting to families.
