The big Pokemon are playing a friendly game. However, no one has ever checked to see if there are tiny civilians on the field....
For Cinderace, however, tiny bugs are nothing more than dirt on a field soaked in mud from the sweat of the players. Regardless, the rabbit charges onto the field, kicking up grass and dust and stomping on dozens of tiny bugs. Some suspect that he is playing especially looking for the paths where the most micros are.
In any case, you should urgently disappear before you end up as a tiny bloodstain between dirt and sweat on Cinderace's sweaty sole. If you can smell them, it's too late...