Before it was added to the game, the 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 Rio 2015 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, that is only temporarily.
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.
This and the 2X Multiplier are the only power-ups in the game not to be seen held by the character when used.
This, the Mega Headstart, and the Headstart (expired) are the only powerups in the game that can be used at the start of the game just by tapping them once.
Both the Mega Headstart and the Score Booster give the player a speed boost once they start the game.
The Score Booster was added on 31/1/13 with the Rio Update.
On 2/7/15, the Rio 2015 Update allowed players to use the Score Booster 3 times as they would with Mega Headstarts. The highest multiplier count is 37 (42 with the Special Thursdays).