Score Booster is a power-up that was introduced in . It costs 3,000 and is available through the Mystery Box or the Super Mystery Box as a rare item. It is also possible to get it from Weekly Hunts. It increases the player's multiplier by 5, 6 or 7 until the end of the run (it depends on how many the player uses).
Before it was added to the game, the old Headstart had its place.
Its arrival made the highest possible multiplier to increase from 60 to 70. On Mystery Mondays, the use of the +10 Multiplier, the 2X Multiplier, and the Score Booster increases the maximum multiplier to 80.
The Update increased the highest multiplier possible. With 3 Score Boosters, Mystery Mondays, Special Thursdays and the 2X Multiplier, players can get their multiplier all the way to 104x. However, it is only temporary.
When used, the multiplier will turn blue.
This, the 2X Multiplier and the missions are the only things in the game that can increase the player's multiplier.