Mario & Luigi: Bowser's Inside Story/Special attacks

Green Shell
Finding the 10 attack pieces in the Trash Pit. Mario (or Luigi) will pick up a shell and kick it at an enemy. Press to get Mario to kick the shell and press  to get Luigi to kick the shell. The shell will bounce off an enemy to the other brother. If one brother fails to kick the shell, the attack is stopped. It costs 3 mp.
 * Obtained
 * Controls
 * Tips
 * The shell goes faster each time you kick it, so stay alert.
 * The shell will move onto another enemy if the first one is destroyed.

Goomba Storm
Freeing the Goombas from the cage in Dimble Wood. Bowser sends out his Goombas to attack the enemy. Touch a Goomba to burn it. A burned Goomba will jump up until after the main attack, when it will come down, doing extra damage. It costs 6 mp.
 * Obtained
 * Controls
 * Tips
 * It is possible to burn a Goomba after it hits the enemy, giving damage from the ordinary attack and damage from the burned Goomba attack.
 * The Goombas will move onto the next enemy if the first one is destroyed.