The Gifs Thread

Just wanted to leave a little something behind and figured this would be the best way to do so.

Guidelines;
One gif per post as to not clog up the page. Try not to quote if possible.
Big gifs are better off being linked.

That's all, I'll start us off with one of my favourites;

Moved this to forum games

And here's a Sonic reaction for C3 user Phoenom;