Spiral Snail is a boss from Darius Force. It is shaped after a snail.
Spiral Snail's shell will appear from the background spinning a floating until it attaches to the main body on the floor. The shell will fire a five-bullet circular spread while the body shoots homing missiles which can be destroyed. The boss's weak point is a blue orb on it's body, which can only be hit when the shell flies off or is destroyed.