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Boosters are items that can be used in Mario Party: Island Tour. They only appear in Rocket Road and act as a Dice Block multiplier. They may be obtained by landed on a Booster Space or winning a minigame.
Booster Multipliers
Boosters are used to multiply the values on the Dice Block. No matter how many Boosters are used, 0 must always be avoided. To win automatically, a player must roll a 25, because the length of the board is 25 Spaces.
| Boosters | 0 Spaces | 1 Space | 2 Spaces | 3 Spaces | 4 Spaces | 5 Spaces |
|---|---|---|---|---|---|---|
0  (x1 Multiplier) |
0 | 1 | 2 | 3 | 4 | 5 |
| 1 (x2 Multiplier) |
0 | 2 | 4 | 6 | 8 | 10 |
| 2 (x3 Multiplier) |
0 | 3 | 6 | 9 | 12 | 15 |
| 3 (x4 Multiplier) |
0 | 4 | 8 | 12 | 16 | 20 |
| 4 (x5 Multiplier) |
0 | 5 | 10 | 15 | 20 | 25 |