Reward multipliers increase your rewards in the game. 

There are two types of multipliers: Level Multipliers and Prize Multipliers. 

Level Multipliers increase rewards for clearing levels, depending on their difficulty: Hard levels, Super hard levels, or Challenge levels. These multipliers affect coins and event currency earned for clearing levels. They don't affect stars.

Prize Multiplier is a temporary booster that you can get as a reward in certain events. It multiplies level rewards, except for stars. It only works for a limited amount of time. 

❗Please note:
⚡ The Reward multiplier only works if the level is passed, as you only earn level rewards after beating the level.
⚡ You can use several Reward multipliers at once: for example, if you play a Super Hard level that comes with its Multiplier, but you've also earned a Prize Multiplier in an event, the two multipliers will work together.