Sheik (Super Smash Bros. Melee)

Overview
Sheik is a character in SSBM. She transforms from Zelda by using Down+B (Transform), and can transform back into Zelda at any time. By holding A at the start of a match (hold it when hitting start from the Stage Selection screen or from the Character Selection screen if stage is set to Random), you'll automatically transform into Sheik at the start of a match.

Unbeknownst to many, Sheik is only a disguise used by Zelda in the Ocarina of Time, and is not in any way a different person.

Pros

 * Fast and agile
 * Quick, comprehensive close game
 * Great at comboing
 * Needles complement her already strong close game
 * Simple to use
 * Downthrow (against some characters an effective chain grab) can launch into further combos against almost every character in the NTSC cast
 * Amazing edgeguarding ability
 * Can wall jump

Cons

 * Easily juggled/comboed
 * Has a very high short hop, slowing her shffl' significantly.
 * Cannot dash-dance effectively
 * Laggy land after using her up B
 * In PAL her grabs are more affected by Directional Influence and chain throwing is no longer possible as well as many of her combo's