Gradius Advance is an Arcade and Single-player Scrolling Shooter video game developed by Mobile21 and published by Konami for Game Boy Advance. The game’s story takes place between Gradius 3 and Gradius Gaiden. According to the plot, Bacterion was creating a deadly weapon to use against the planet known as Gradius, but it was smashed. A few years later, it crashed on a strange planet and the planet transformed into a mechanical fortress. After that, the Gradius send the Vic Viper to fend off it. In the game, the player commands a spaceship and navigate the environment from a horizontal scroll with an aim to destroy waves of enemies. Different traditional elements are introduces from Gradius, including an unprotected final boss, the moai, and an upgrade power meter. However, the weapon system of the game remained unchanged. There are many levels, and each level is full of enemies that are ready to attack the player, but the ship of the player is also equipped with dangerous weapons, and upon receiving power-ups, it becomes deadly.