>>11510343
Nearly every canister had some sort of extra gimmick. The main purpose is to give you a unique way to store the set (particularly for travel if you want to take it somewhere without losing parts); any secondary function was a nice bonus. The Mata and Nuva both had the axle holes to stick heads into to display Kanohi, the Rahkshi had a spot to store Kraata and you could peel the label off to make it a sort of stasis tube, and all the Metru era ones could store a disk/spinner. The Piraka and Inika both had "try me" buttons for their respective light-up features. Then the Mahri weren't really in canisters anymore so they couldn't be used for storage, but they had a bunch of connection points which could be used to hold their gear or as a barricade with their blaster as a turret (as advertised on the back of the box). The Phantoka ones didn't really have any features but were at least actual canisters again (and I honestly appreciate how weird and cool they look). That was the true endpoint for canisters having extra gimmicks, as neither the Mistika nor any of the Glatorian ones were anything beyond just containers.