Chain Dance

From SmashWiki, the Super Smash Bros. wiki

Named by Kitt, the Chain Dance is a glitch in SSBM that comes from the boomerang superjump. It can be performed by either Link or Young Link. It is done by throwing the boomerang, and then wall-grappling on a wall or the side of a stage. As soon as the boomerang flies into Link/Young Link press X and you will see Link/Young Link jump but they will still continue to hang on the chain at this time you can perform many different attacks: You can pull out a bomb while on the chain then press the A button to rise in the air. You can throw the boomerang again then press the A button to rise in the air. You can perform the Spin Attack while on the chain then press the A button and Spin Attack again for a double Up B.

This glitch was removed from the versions PAL and 1.2.