Poison

Poison is a status effect in Super Smash Flash 2 that causes an opponent to gradually take damage over a period of time. Oddly, when this status is inflicted, a balloon with green bubbles appears under the character affected, said balloon hails from the Final Fantasy series, and appears even if it wasn't inflicted by a Final Fantasy character.

Attacks that poison opponents

 * 's down throw.
 * Shroomish's Poison Spore.