The Busting Level is key to earning Chips from your enemies. The higher your Busting level, the greater your chances of getting a Battle Chip from your opponent, and the better your chances are of getting rare versions of Chips when it comes to multiple enemies, or enemies with multiple Chips.
If your Busting Level is too low, you are almost guarenteed to get Zenny instead of a Chip. Also, the lower the Busting Level, the less Zenny you earn.
The points that you earn through your actions determine your Busting Level. Earning 11 points or more nets you the "S" Ranking, the highest-level possible.
I'll get itno detail about how to get points later, right now, my back hurts from leaning over for this long, and this is... well... kinda boring.