Solar Assault is similar to other rail-shooters like
Star Fox and
Galaxy Force, where the player must move both horizontally and vertically. Like the other games in the Gradius series, there is no health bar, meaning one hit ends up in death; however, this time the player may be able to collect a "shield" power up which can take one hit or two hits before the ship's destruction. The other major gameplay change is the ability to adjust the speed, which is necessary to time the avoidance of certain obstacles and enemies. There are three ships to choose from: the Vic Viper, Lord British and Alphinia. ==Release==