Strategy

Well, there is no "strategy" per se for this one click spin and pure luck-based game. However, you can use several playing styles for various scenarios you may encounter in this game.
(1) You can play using a fun balance (not real money) to get familiar with the game you choose;
(2) Start with low volatility slots if you are new to the game;
(3) If you play in a progressive slot, you can play until you hit the bonus level. Or use the "buy feature" since it will become cheaper.
(4) You can use the martingale strategy to buy features, but keep in mind this is like high-roller stuff. You can lose all of your money if you are unlucky.
(5) You don't have to stay in the same game and waste all of your money there. Remember, the probability of winning the next spin will remain the same. However, you will lose your progression doing so, thus always save your last money to buy the feature before you quit.
(6) If you manage to salvage some of your initial balance, don't play until it becomes zero. Call it a night, and use it next weekend.

....Or maybe some good number spreads on the dice game.