Two gangs were involved in a brawl outside Melbourne's Luna Park on Sunday, where two teens were struck with a machete.
Three men have been charged and each faced Melbourne Magistrates Court on Wednesday where they all successfully applied for bail.
Abbas Mazrawi, 18, Mohamed Khan, 21, and Abdurahman Khan, 18, have been charged with various offences, including affray and behaving in an offensive manner in a public place, over the incident on Sunday.
They began arguing with another group inside Luna Park before they were removed by security about 4.30pm, police allege.
Another fight broke out between the two groups on Cavell St in St Kilda, before Abdurahman allegedly grabbed a machete and swung it at two 18-year-olds who suffered minor cuts, the court was told.
The victims "feared for the lives" and were chased by Mazrawi and the Khan brothers, Detective Senior Constable David Peterson said.
Prosecutors opposed releasing all of the men on bail, citing protection of the community from the risk of rising knife crime.
Mazrawi and Mohamed were allegedly involved in a machete brawl that shut down a Broadmeadows shopping centre on October 11, the court was told.
Mazrawi was released on bail by Magistrate Felicity Broughton earlier on Wednesday, as she found stringent bail conditions could ameliorate his risk to the community.
He was not accused of wielding the machete, his barrister Alexander Patton argued, so Mazrawi's involvement in the alleged offending was "very low level".
His bail conditions will include a nightly curfew, not possessing or carrying a bladed weapon and keeping a diary of work and court appointments.
The Khan brothers applied for bail later on Wednesday, when Det Sen Const Peterson said members of the public had been "severely traumatised" by the Luna Park incident.
"Given the current climate around knife crime, in particular machetes, it's absolutely abhorrent that the three accused believe it is acceptable to produce the machete," he told the court.
"It's a popular theme park where young children visit with their families.
"Members of the public have stated they are severely traumatised and will avoid coming to Melbourne."
Det Sen Const Peterson alleged Mohamed was part of a group involved in the fight at the Broadmeadows shopping centre on October 11, when two people were seen "swinging machetes at each other".
"Many of the shop proprietors closed their roller doors, while innocent members of the public ran out of the shopping centre in fear," he said.
He said charges were yet to be formally laid, but Mohamed was expected to be charged on summons.
The Khans' barrister Theo Alexander showed the court a photo of Abdurahman's injured face as he said the Luna Park attack was in retaliation for being allegedly assaulted and his client had been acting in self-defence.
Abdurahman was pulled from a car by a member of the other group before he grabbed the machete, Mr Alexander said.
He is charged with intentionally cause injury, assault with a weapon and carrying a prohibited weapon, among other offences.
Magistrate Pauline Spencer said Abdurahman's offending was "very serious" as the chance of seriously injuring someone by bringing a machete to a brawl was "really, really high".
"This is a place where people should be having a good time, not a place where people should be using weapons and machetes," she said.
"What that does is make everyone in the community feel unsafe and scared to go out."
She granted the Khan brothers bail, citing a lack of "considerable" criminal history but imposed stringent conditions and monitoring.
All three men will return to the court on December 10.
