"When I was standing there and I saw the eyes roll back in his head, I've never seen my boy do anything like that. He had a bit of a seizure then went all floppy, and then just screamed," he said.
The incident happened just three days after an Auckland father watched in horror as his son was sucked under a giant bouncy castle at Inflatable World in Glenfield.
Zaybein was slowly improving yesterday after only being awake for a couple of minutes at a time last week, Mr Marjoribanks said.
He played Connect Four, one of his favourite games, but "could not wrap his head around it".
"He's back to square one, he won't be able to go back to school," he said.
Inflatable Solutions director Gary Adamson said as soon as they were informed about the incident a member of senior management was sent to investigate.
His company provide the equipment and safety advice for the operators.
"Part of our investigation will be to determine if these were followed.
"We will be working closely with Worksafe to determine what happened," he said.
Napier's Inflatable World would be closed until they could say safety standards were being met. "The safety and wellbeing of children at Inflatable Land is paramount.
"We are very disappointed and devastated to hear about this."
Mr Adamson said he would like to apologise to the Wathey family.
"I have spoken to Ms Wathey briefly and will be following up on that conversation," he said.
"We are deeply concerned for Zaybein's wellbeing."
Zaybein's mother Haley Wathey said Inflatable World had only made contact with her after the story broke.
Zaybein was a promising rugby player and his playing future was now in jeopardy, she said.
"I want to know what they are going to do for these injured kids other than the $6 refund," she said.
"All they did is close their doors, they can still sleep at night. My son can't."
Worksafe New Zealand are investigating the incident.
