Puff Up is Jigglypuff's Final Smash. During it, Jigglypuff grows to multiple times its normal size. It takes up more space than the Iceberg. However, when it touches opponents, they take no damage. Because of its rubbery, flexible exterior, opponents bounce off of it when it is at the peak of its growing, potentially knocking people off stages when it bounces. Jigglypuff then starts to shout, and anyone touching it right after it shouts, will take damage (18%). Also even if someone isn't touching it, if they are close enough they will feel considerable knockback. Jigglypuff then shrinks to normal size.
- Jigglypuff's size before using the final smash affects the size it grows to. In giant mode, it grows to a size where only its face is visible on screen.
There is also a glitch in the game where the terrain is some stages (mainly Bridge of Eldin) touches Jigglypuff and knocks it out of the move yet it remains the same size it was when it was forced out of the Final Smash. Also, if Yoshi (or Kirby with Yoshi's ability) uses his Egg Lay on Jigglypuff after this, its size doubles. Its size resets for a split second when it uses the Final Smash again.
As a pun on its enormous size and on Giga Bowser this attack is often called "Gigalypuff" by fans.
|Jigglypuff's Special Moves|
|Final Smash||—||Puff Up|