NEW YORK (AP) _ One of four teen-agers wounded in the so-called ''subway vigilante'' case said he and his friends were on their way to rob video games at the time of the shooting, and had no plans to hold up the gunman.

Meanwhile, the mother of the most seriously wounded teen-ager said she harbors no hard feelings against the man accused in the incident.

The youths were shot Dec. 22 as they rode a subway train in lower Manhattan. Bernhard Goetz, 37, who is charged with attempted murder in the shootings, has won broad support from the public.

Barry Allen, 19, told the Washington Post that the youths were going downtown to break into video arcade game machines when one of the four simply asked Goetz for $5, much like a panhandler.

''We wasn't planning on robbing him,'' Allen said. ''We had no intention of robbing him. ... Only one person approached him. He had no reason to be scared.''

Allen, who in today's editions of the Post described his life as a high school dropout, cocaine addict and unwed father who served two short jail terms for petty larceny, said Tony Canty had asked the gunman for the money to play video games.

According to Allen, the man replied, ''I'll give it to you'' but ''pulled out a gun and started shooting. I tried to run. People started screaming.''

''That man ain't no hero. That man took the law into his own hands, man. He got to be punished,'' said Allen.

Howard R. Meyer, Canty's attorney, maintained two screwdrivers Canty was carrying at the time were not weapons.

''My guy never had crimes against individuals,'' said Meyer. ''He puts holes in video machines, not in people.''

Meanwhile, Shirley Cabey said Thursday she holds ''no hard feelings'' against the man who shot her son. Her son, Darryl Cabey, 19, was paralyzed from the waist down in the shootings and slipped into a coma Wednesday. He was the only one of the four victims still hospitalized.

But Mrs. Cabey said one of the most upsetting aspects of the incident has been the public's support for Goetz.

''It's hard for me to know how people feel, knowing how this man has hurt my boy,'' she said. ''He is paralyzed now and just lying there.

''Two wrongs don't make a right,'' said Mrs. Cabey before she went to St. Vincent's Hospital, where her son was listed in critical condition.

Cabey, just before slipping into the coma, apologized to his mother, the New York Post reported today.

Holding her hand, he told her, ''I'm sorry, Mom. I shouldn't have been there.''

Mrs. Cabey said she and her other five children have drawn strength from people who call and write them.

But, she said, one man wrote her son, ''you get no sympathy from us peace- loving, law-abiding blacks. We will even contribute to support the guy who taught you a lesson, every way we can... P.S. I hope your wheelchair has a flat tire.''