The Wario Waft (ワリオっぺ, Warioppe), commonly known as the Fart, is Wario's down special move, which makes use of his flatulence to attack opponents. It becomes more powerful as time passes, ranging from a tiny "poot" to a massive explosion (which has high knockback and damage). As half charged it's his fastest and strongest KO move, activating in only 3 frames when half charged, incredibly fast for a very powerful move. It was first revealed in Super Smash Bros. Brawl's first trailer, where the move created a large explosion, complete with a mushroom cloud completely different to the current one, making people believe that this move was going to be his Final Smash. It seems that the move cannot have such power in the actual game. When the attack is fully charged, Wario will flash orange. This takes almost 2 full minutes (About 1 minute and 50 seconds). Wario Waft is the only other chargeable attack whose charge is retained even after the user is KO'd, the other one being Oil Panic.
A fully charged Wario Waft from normal Wario does 42% damage (40% plus 2% for being fresh). He also flies into the air a distance that is nearly unrivaled by any recovery move. However, it's possible to self-destruct if Wario flies across the top blast line from performing this move fully charged. While he's Wario-Man, the Wario Waft can do 50% damage if fully charged, and even if it isn't charged up, it has unimaginable power, and is a One-Hit KO. Even if Wario doesn't connect with a fully-charged blast, he can still run into characters while being launched for approximately half damage and strong vertical knockback. It can be set up by an up throw, and also has some use in edgeguarding. A fully charged Wario Waft also has launch resistance.
 Example damages
The move is loosely based on a minigame in WarioWare: Smooth Moves where Wario farts briefly but it doesn't create an explosion. Wario also farts in the game Mario Strikers Charged as his super ability. However, Mario Strikers Charged was announced after Brawl, yet released a year before Brawl was released. It's possible that his move in Mario Strikers Charged comes from this game, or vice versa. The only difference is that the gas in Mario Strikers Charged is green and only explodes when it touches fire such as the lava in the Lava Pit or Bowser's Fire Storm super ability.
"Punish foes with a fart. Don't use it for a while to build the fart's power."