Radial+ (AKA: Radial Plus) is a simple spaceship shooting game based on simple space scenes, comes with distinctive graphics and background music. One interesting thing that differs it from a lot of space shooting games is that, in Radial+, direct firing at enemies is invalid, you have to rely on the reflection of the bullets to hit the enemy ships. Plus, the fire power will become more heavy if the bullets get more reflections! I think this should be the origin of the name of this small game.