Shell Slam

Shell Slam is an attack that Koops can use in Paper Mario: The Thousand-Year Door upon reaching Ultra Rank. This move costs 6 FP. Shell Slam is essentially a more powerful version of Power Shell, doing up to 6 damage instead of 5, and piercing Defense Power.

To successfully execute this move, the player must rapidly tilt the Control Stick left to fill a gauge. Depending on how far the gauge is filled, the damage can be anywhere from 0 to 6. This move also has two opportunities for a Stylish move. The first Stylish happens when Koops retreats to his initial position after performing the attack, which will make him do a breakdance. Assuming the first Stylish was performed, after Koops does two spins on his head, the player can press again to do a second Stylish where Koops will point upwards with one hand.