Puff Up glitch
The Puff Up Glitch is a glitch for Jigglypuff in Super Smash Bros. Brawl. The glitch works on any stage where terrain is regenerated (like the awnings on Onett, the floor on Green Hill Zone, etc. The easiest and most popular place to use this glitch is the Bridge of Eldin.
Instructions
1Jigglypuff must break a Smash Ball. 2On the Bridge of Eldin, after King Bulbin destroys the middle of the bridge, a twilight portal will open after a while and start restoring the bridge. Any time during the restoration of the bridge, jump into the space where the Bridge will re-appear with Jigglypuff and use its Final Smash. 3Jigglypuff will start to grow, during which the bridge will be fixed, and if timed correctly, Jigglypuff will be launched into the air and will stay in its larger state. It now has a larger attack range, but the damage from its attacks will remain the same. 4If Yoshi (or Kirby with Yoshi's ability) uses Egg Lay on Jigglypuff while it is in its permanently enlarged state, she will escape the egg and become twice the size she was before. 5To end the glitch, just self-destruct or use Jigglypuff's Final Smash again.
Using the same process of achieving this glitch, many other Final Smashes will have odd effects, such as R.O.B. gaining a permanent Diffusion Beam.