Nitro Express is a high-octane 2D side-scrolling shooter developed by Grayfax Software and published by PLAYISM, set to release on PC via Steam on May 19, 2025. Set in a reimagined Tokyo known as Nitro City, players take on the role of elite officers in the Atypical Vehicle Disposal Squad (AVDS), tasked with eliminating rogue autonomous drones—referred to as "Atypical Vehicles"—that threaten the city's safety. The game features charming pixel-art visuals and allows for 360° free aiming, providing a dynamic and immersive combat experience.

Gameplay in Nitro Express emphasizes strategic shooting mechanics. Players can choose between agile submachine guns for on-the-move firing or heavier weapons that require a stationary stance for increased accuracy and damage. The game also offers a variety of gadgets, including EMPs, auto-firing turrets, flamethrowers, and anti-tank missiles, to tackle diverse enemy types ranging from nimble drones to heavily armored tanks and helicopters.

While the narrative unfolds through optional police radio communications, allowing players to engage with the story at their discretion, Nitro Express is designed to cater to both action enthusiasts and those seeking a deeper narrative experience. The game's design encourages replayability, with its blend of intense combat and strategic weaponry promising a fresh experience with each playthrough.