Third: bet max on the slot until you get to 67,500 for the bet if you have a low chip count wait until the next day for the pop the slots chips if you have a lot keep going, and while you're doing this your bonus chips will go up if you have 10-20 thousand for your bonus (and you can see the bonus when you tap the symbol in the top right) and you have low chips sit and wait until the fire vs lighting bonus round the most I've made from it is 20 million and I didn't have any chips at the time.

Second: go to this website on your phone or this one get the daily chips. This guide is for the pop slots level 35 $25 dollar offer first things first download the app and play until level 5 there you will unlock the fire vs lighting slot.