Nano Assault (U) (ナノアサルトU) is an action-packed 3DS game developed by Shin'en Multimedia. It is a fast-paced shooter game that takes place in a microscopic world. Players take control of a Nano ship and must navigate a dangerous environment filled with enemies and obstacles. The goal is to destroy the virus cells that have taken over the world. The game features 3D graphics and an intuitive control system. Players can move their ship in any direction, allowing them to dodge enemy fire and navigate through the environment. The game also features a variety of weapons and power-ups that can be used to defeat enemies and progress through the levels. Nano Assault (U) also features online leaderboards, allowing players to compete against each other and see who can achieve the highest score. The game also includes a variety of difficulty levels, allowing players to choose the challenge that best suits their skill level. Overall, Nano Assault (U) is an exciting and challenging 3DS game that offers an intense and immersive experience. With its fast-paced action, intuitive controls, and online leaderboards, it is sure to provide hours of entertainment for 3DS owners.