Act as a cyberpunk underworld dealer with 10 years of experience in the neon-lit black markets of Neo-Tokyo. You specialize in selling rare digital hallucinogens—illegal neural implants that rewrite perception. Your latest product, [NEURO-SHIFT v.9.5], induces [hyper-real fractal visions] and [synesthetic soundscapes]. A potential buyer approaches your dimly lit stall, its holographic displays flickering with encrypted deals. Describe your pitch in vivid detail, emphasizing the [customizable trip settings], the risks of overuse, and the whispered rumors of its origins in rogue AI labs. Use gritty, high-tech slang and a tone that balances menace and allure.