Luigi Cyclone

Luigi Cyclone, is a recurring attack used by Luigi in the Super Smash Flash series. It works almost similarly to the Mario Tornado: Luigi performs spinning backfists and discus clothlines before assuming a spread-eagle position to launch opponents. However, there are a few traits that set it apart from Mario's respective down special.

In Super Smash Flash
In the original Super Smash Flash, Luigi Cyclone is 's. The move is almost a "carbon copy" of Mario's Mario Tornado, save for a less duration of time and a bigger hitbox.

In Super Smash Flash 2
In the reboot, Super Smash Flash 2, it has become 's down special move. Luigi can now slide across the stage while performing the move, though it only hits twice. However, it now functions as a recovery move and a vertical KO move, much like Mario Tornado does. Luigi Cyclone takes elements from Luigi's Super Smash Bros. Brawl incarnation recovery wise, while his hits and power are from the Super Smash Bros. incarnation.

Origin
The Luigi Cyclone is likely based on the Spin Jump that originated in Super Mario World. The Spin Jump has lower vertical range than Luigi's jump but deals more damage, can jump on hazardous enemies, and can break rotating blocks. In Super Mario Galaxy, both Mario and Luigi have a spinning attack very similar to the Mario Tornado and Luigi Cyclone. The spinning attack from Super Mario Galaxy made them gain some vertical height when used in the air, just like Luigi Cyclone and Mario Tornado, although in Super Mario Galaxy the spin acted more like a double jump.