The Chain Jacket Glitch is a glitch in Super Smash Bros. Brawl that makes Sheik replace her Chain move with the last move used previously. To perform the glitch, the player must use any move, short hop, and, in the highest part of the jump, release the chain. If doing it with an attack with multiple hitboxes with kick properties, then the last hitbox that remained will become in the glitch. If it's a move with two or more hitboxes at the same time, then parts of the Chain will become a sourspot, while the other parts of the Chain's hitbox will become the sweetspot. This glitch can sometimes make the Wii freeze.
If used in the Home Run Contest Co-op mode, using the glitch with the Home-run bat's Smash Attack, the other player being Pikachu (or another character with a move to keep the sandbag in place), and constantly using its neutral attack, it is easily possible to get 300% on the Sandbag. However, it becomes difficult to get much distance, since the Home-run Bat's Smash Attack has been decayed as far as it'll go.
- Correctly performing the glitch without attacking prior causes the game to freeze.