Classic Airplane Scrolling Shooter
In 1990 Seibu Kaihatsu developed an arcade game and this game was the first of the entire series of these kind of scrolling shooting games to be developed and enter into the market. Since Seibu Kaihatsu is Japanese, he named this game Raiden. In Japanese Rai means Thunder and den means Lightning. It was also the name of one of the Japanese WWII fighters and hence this name was chosen for the game.
The game is set in 2090 where the earth is invaded by aliens called Cranassians and the World Military Alliance in order to combat these aliens builds a new weapon called the Raiden Supersonic Attack Fighter. This is the only thing that will help the world.
In this game there are eight scrolling missions and the player has to move his craft in such a way that the enemy robots, buildings, aircraft as well as targets are destroyed. One has bombs, missiles as well as medals which are awarded based on the score reached. In the game, when the player is killed, the fragments of him become projectiles and these are used to damage enemies as well.
The last stage is defeating the boss of stage 8 and that accomplishes the mission. Post completion of the mission, the player is given 1 million points for every loop that has been completed. Then it moves back to stage 1 but the enemies come at a more rapid rate as well as they shoot faster.