When most people today think of Combusken, the first thing to come to mind is their appearance in a litany of fighting games. This is not, as has been commonly surmised, due to any unique grace or skill on their part; many of the techniques for Combusken, as for other pokemon, are based only loosely on real attacks and embellished for the sake of gameplay. Nor is it because of Combusken's small size and the need for a short character to dodge high attacks; there are shorter fighting-type pokemon, after all, yet one rarely sees a Machop in such games.
The real reason for Combusken's ubiquity is an accident of history. When Littleroot Studios were developing the first game in their acclaimed Type Wild series, many of the motions for not only Combusken but the other pokemon in the game were developed by observing the Combusken owned by Professor Birch, the only fighting pokemon in the area whose movements were slow enough to capture. It is in tribute to this that the series has included a Combusken from day one, and that the many games it inspired have followed its lead.
Many trainers have been disappointed to learn that real Combusken are incapable of pulling off a sky uppercut to blaze kick to fire punch combo on a regular basis. Others have set up contests where trainers enter their Combusken and attempt the longest combo they can on Lucario dummies, a contest so popular it has recently been included in real fighting games as well.
(This entry is loosely inspired by a real fanmade pokemon fighting game called Type Wild. It includes both Combusken and Blaziken. If you've never heard of it, go check it out.)