Cape

Cape, known in Japan as Super Cloak, is 's side special move in Super Smash Flash 2.

Overview
When performed, Mario pulls out his yellow cape and swipes it in front of him before putting it away. If the cape makes contact with an opponent when swiped, it switches the direction that the opponent is facing and deals 8% damage and slight knockback to them, but with no flinch. The cape can also reflect projectiles if timed correctly.

Additionally, using Cape in the air will slightly lift Mario into the air for a moment without compromising much horizontal momentum, which can benefit Mario's horizontal recovery. Using Cape after dashing will cause Mario to slide a little bit.

Cape Glide
The Cape Glide, also known as CG or aerial cape extension, is an advanced technique which Mario could also perform in Super Smash Bros. Brawl. To do this, the user has to dash off a ledge and perform Cape a few frames before Mario as about to run off of it. Mistiming it will have Mario only stop by the ledge and be able to grab it, or he will perform an aerial Cape. This technique is useful for mindgames, mobility and edgeguarding. Mario can save his midair jump when using this and can use any aerial attack. When Mario performs this technique, the effects of Cape last throughout the glide.

Cape Dash
The Cape Dash, also known as the reverse Cape Glide, allows Mario to perform the Cape Glide on stage. To perform this, the user must use Cape in the same way with the same timing as with Cape Glide, but instead of moving forward, they must turn around just as they are about to run off the ledge. This will make Mario perform a Cape Glide on-stage. This is good for setting up mindgames against opponents.

Origin
Originating from Super Mario World, the Cape was a power-up obtained from the Cape Feather, which enabled both Mario and Luigi to spin and attack with it (although Mario did not hold the cape in his hand during the spin attack, as he does in SSF2 and the Super Smash Bros. games), as well as flying great distances after a running start and floating softly back to earth when falling. Mario did not "fly", rather, but "glide", but could do so more or less indefinitely by diving and pulling up in a certain rhythm, and while gliding he could slam into the ground to create an earthquake capable of damaging all enemies on the screen. This is, of course, not present in SSF2.

Trivia

 * Cape did not appear in SSF2 until v0.2b of the demo, where it replaced F.L.U.D.D..
 * In v0.9a, Mario would go into a landing animation after performing Cape on the ground. This is due to the move being coded improperly to make the advanced technique Cape Glide possible.
 * He is still able to perform the Cape Glide evem after this was fixed in v0.9b.