A propulsion system consisting of a handle, trigger, receiver, hammer assembly, spring, fastener and plunger used for propelling small portions of semi-solid biodegradable objects such as a potato or apple. The combination of these parts provides a compact yet easy to use system for loading and shooting a small piece (otherwise known as the Slug) of the semi-solid biodegradable object. It also is a platform to generate, store and release in a controlled manor potential energy with the end result being to compress a separate, self resetting compression chamber filled with air and propel the small portions of the semi-solid biodegradable object from the device.