Shell Shock (item)

A Shell Shock is an item in Super Paper Mario. It rams into enemies when the player kicks the shell. Using one activates a minigame where the shell bounces around the screen, and the player must press A while hovering over it with a crosshair. If the player succeeds, the shell grows to almost three times it's original size, but if the player fails, it stays small.

To use this item, the player must aim the Wii remote at the shell and press A to supersize it. If the player misses, the shell will remain small during the attack.

Trivia
The Shell Shock item is actually a 8-bit sprite of a Green Koopa's shell from the game, Super Mario Bros..