Railgunner is a game with simple gameplay. Control your ship to avoid and shoot other enemy ships when they are also trying to attack your ship.
When an enemy ship tries to approach you and randomly shoots at you, you will immediately aim for that ship. To shoot, click your mouse. You can't miss because you only have five bullets and you have to kill the fifth ship to fully load the remaining four. The game will be over if the hostile ship shoots you if it gets too close. The number of ships shot determines the final score.
This game requires quick reaction due to the randomly arranged enemy ships. You should shoot at nearby enemy ships in descending order. Place your hand near the screen, then watch the screen intently to align your shot with the approaching enemy ship.
Plan to attack consecutively instead of attacking enemy ships one by one if there are many enemy ships. While it may not produce a great effect, portraiture is recommended. You can wait for the enemy ship to turn clockwise before firing if your ship is turning against the direction the enemy ship is moving. Spin speed is at its lowest at the time, creating a more stable target, which can be beneficial.
When in a dark environment, the flash from taking down enemies can be quite distracting. So a bright room can help focus.
Use mouse to shoot.