You can either let the auto run, or you can babysit the auto.
I watched mine and it would average about 4 combos a game on medium. Then I would play with it a little. Put the auto on pause and let some rows drop, from there start the auto and let it do its thing till you are back on the top again. Then again pause it and let some rows drop.
I was averageing about 10 a game then. So it took about 15 minuits for the badge on medium, babysitting.
i cant get it to work the browser is hmm oh ya IE same size 10 something and whatever and xp windows no whatever we aren't soppose to have checked. Ummm chest size 36 c or large B LOL whoops whatelse i hate the game thats for sure. Is that good info to give. Getty >:D