Parcel Sprint browser game prototype AI-assisted, self-produced original prototype by Jaco Taute. This is not paid-client work. Parcel Sprint is a one-minute, three-lane delivery game made with HTML, CSS, JavaScript and Canvas. Players collect parcels, avoid roadworks and try to improve their local best score. It includes keyboard and on-screen steering, streak bonuses, pause/resume, replay and optional synthesized sound. The responsive interface and code-drawn graphics are contained in a single downloadable HTML file. No sign-up, backend, external assets or payment service is needed. Best scores stay in the browser when local storage is available. Supporting evidence includes actual browser screenshots, editable source and a saved automated-Chrome test report with 32 passing checks: 22 browser checks, 8 deterministic simulations, 1 full automated-play round and 1 synthetic browser-event check. These are not 32 manual playtests. Images: desktop-browser start screen, then gameplay in a 390-pixel-wide responsive browser viewport. The second image is browser emulation, not a physical-phone test; its local best is a test-browser score. No hosted deployment, physical-device test, human playtest or market validation is claimed. The sample demonstrates a runnable prototype, interface and game logic, with no paid-client results, validated demand, revenue or unaided human coding/design expertise claimed.