The Blackpool schoolboy, who fractured his skull and broke 11 bones in his body in a horrific road accident, wants to trace a man he says saved his life.
Matthew, 13, doubts he would be alive today if the mystery man had not rushed to his aid when he was hit by a car in South Shore two years ago.
The Good Samaritan reassured him, kept him talking and stopped him from moving until paramedics arrived at the scene on Clifton Drive.
Now, after years of trauma counselling and countless hospital appointments, Matthew has finally been given the all-clear by doctors.
And he is desperate to trace his bearded hero to say thank you.
Matthew said: "If he hadn't kept me talking I think I would have fallen asleep and died from the shock.
"He kept telling me I would be all right and was asking me questions like who my favourite football team was and stuff to keep me chatting.
"He had a grey beard, was chubby and was about 50. I would really like to thank him in person.
"I remember him looking down over me and just giving me loads of reassurance. It would be great to see him again and show him how I have recovered."
Matthew was crossing Clifton Drive, near Harrowside, on his bicycle when the accident happened at 3.40pm on Sunday April 18, 2004.
He and his friend were heading for the Co-op for a drink after playing football.
Matthew said: "The car hit my back wheel. I went into the air, on to the bonnet and I smashed through the windscreen. I was carried 50 yards by the car before landing on the ground again.
"It took guts to come over and see all the blood and gore and help me but if this man had not, I don't think I would have survived."
Matthew, who lives in Highfield Road, also wants to find the couple who brought his mum to the scene that day.
He added: "People asked me my address and a couple drove down, knocked on the door and told my mum to come. She got there before the ambulance. I reckon they must be local to know where to go so quickly."
Police also have no idea who the mystery helpers were.
After initially being taken to Blackpool Victoria Hospital, Matthew was transferred to Pendlebury Children's hospital in Manchester later that day.
The following day he was moved to Booth Hall Children's Hospital, Manchester, where he stayed for a week.
He broke bones in his arms, wrists and legs, dislocated his shoulder, was speared in the knee by the spokes of the wheel and suffered 22 facial injuries.
Both arms and one leg were in plaster for about 10 weeks and he had to sleep downstairs on an electronic bed for months.
When he returns to Highfield School today, he will be able to do PE for the first time since the accident after being given doctors' permission.