In the early concept art and initial gameplay footage for Star Fox Adventures, Krystal’s staff was originally designed to transform at the tip whenever Fox used one of its magical abilities. For instance, when performing the Ground Quake ability, the staff would morph into a hammer. Interestingly, one piece of concept art even shows the staff transforming into a wing tip, suggesting it would allow Fox to glide. These transformation models were still present in the E3 2002 kiosk demo, but the feature was ultimately never implemented in the retail release.