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===''Mario Strikers'' series===
Spiny Shells, also known as '''Spiked Shells''',<ref>{{cite|date=2007|title=''Mario Strikers Charged'' instruction booklet|page=5|publisher=Nintendo of America|language=en}}</ref> function as [[List of items|items]] in ''[[Super Mario Strikers]]'' and ''[[Mario Strikers Charged]]''. When fired, they will shoot towards the other players, similarly to [[Green Shell]]s. However, instead of just hitting one player, then disintegrating, the Spiny Shells will keep going. This can be compared with the green [[big shell|Giant Shell]]s. They continue to bounce around the stage until, at long last, they wear out, and get destroyed on their own. The more effective counterpart of the Spiny Shell is the spiked Giant Shell. Spiny Shells usually come in groups of three. In these games, Spiny Shells have a hexagon-plated carapace rather than the usual smooth one.