Just started playing basic brawl about a week ago. As soon as I came across a group of these guys I was pretty much hooked. Its good to see that its an official thing, lol
I usually play as the default yoshi, signature moves are throwing egg pieces from my shield, and eating/tackling people. Occasionally I will play blue pikachu or blue jigglypuff.
Some people are crazy, I was ganged up on for turning people into eggs, although we had played a bunch of games in a row. They were led by a default snake, and at first he was just coming for revenge with that grab-hold thing snake does (which im fine with him doing, its really funny actually), but at one point he was just trying to KO me with his final smashes and bomb thingies. If you hate being egged, just punch me a few times and ill stop, its pretty easy.
Also, I definitely played with a red snake and red pikachu earlier. Hi, i'm THAT yoshi!