There's an age-old question about bears and whether or not they do their dirty, sinful bear business in the woods. That's a question for another time, but we can tell you without any doubt that a bear doesn't fart in the woods. In Street Fighter X Tekken, Kuma uses his picnic-basket powered toots as the final hit in his hyper combo.
In Super Smash Brothers, Wario's fart attack is not a joke. Half-charged it's super fast, and very powerful. We could've showed it to you in action, but we thought his introduction video sold it much better. Wario's Waft has been studied in more absolutely ridiculous detail than Obama's birth certificate, and here's a page to prove it.