Remember, when you are playing the free Fireball slot machine in online mode and do not download it, you’ll find symbols like BARs, triple bonus frenzies and sevens, red hot sevens, dollar signs, cherries, etc. It would be wise to spend some time with the demo version of this game first until 88 slots you master its rules because once you start playing it for real money, you should be pretty careful – the stakes you make can be pretty high. The effects of different spells add together while the durations of those spells overlap. The effects of the same spell cast multiple times don't combine, however. Instead, the most potent effect--such as the highest bonus--from those castings applies while their durations overlap, or the most recent effect applies if the castings are equally potent and their durations overlap.