Game Over (1996)

15-year-old Moritz lives with his father near East Berlin, helping at his gas station and drifting through life after his girlfriend leaves him. He skips school, hides in a crumbling house, and escapes into music, Game Boy games, and memories of his mother - believed to have died ten years ago. But a chance discovery reveals she’s alive and living in Hamburg. Moritz sets out to confront her and the truth.