When playing, a piston rod is manually pulled back against spring tension in a fashion similar to drawing a slingshot, allowing pellets to be drop-loaded from a top mounted magazine.
Unlike airsoft and paintball pellets, the hydrogel shots are not biodegradable, and should not be inhaled once dried or in their powdered form.
They are easy to clean off clothing, and will not cause any bodily injury due to their softness and readily tendency to fragment upon impact.
Finally, sodium polyacrylate can cause severe clogging if it enters sewers or drainage systems in large quantities.
The data on its safety on environment is not adequate, however it is considered non-biodegradable and may cause salinization of soil when added in large quantities.