Solar Striker is a vertical scrolling shooter video game for the Nintendo Game Boy. It was developed and released by Nintendo.
Gameplay
You control the advanced space fighter, code-named: Solar Striker. There are six levels of play against the forces of Reticulon. Enemies appear from the top of the screen. Special ships can be shot and power-ups can be obtained. One power-up means twice the shooting. Three power-ups mean thrice the shooting. Five power-ups means big blasts on enemies which are helpful, especially against tough enemies and bosses that take many hits to destroy. There are a variety of enemies as well as sub-bosses in the later levels. They descend in patterns and bosses have their own way to try to defeat the player.
Source: Wikipedia, "Solar Striker," available under the CC-BY-SA License.