Generate a vibrant and colourful collage that embodies the eclectic and youthful spirit of Harajuku, Tokyo. The design should be inspired by Retro Arcade aesthetics with oversized pixelated patterns, 8-bit characters, glowing neon tones, and the nostalgic design elements typical of arcade games in the 80s. The scene should include fashion-forward people, funky storefronts and vibrant streets of Harajuku, all depicted in this distinctive style.