Mario Kart 8 item probability distributions
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The following distributions are used by version 4.1 of Mario Kart 8 to determine the probability of obtaining a certain item when an Item Box is opened. The tables have the same structure seen in Mario Kart 7, with the column number of each item being the same for the items featured in both games and the probability coded as a percentage multiplied by two.
Title screen (ST)
These item probability distributions are used in the demonstrations of the gameplay that are shown in the title screen. Although 20 sets are defined for them, only the second, third and fourth actually contain at least a probability value different from zero.
During races, each probability distribution is chosen depending on the distance from the frontrunner in the moment the Item Box was opened. The distance reported is the one at which the switch to the next distribution happens.
Grand Prix races
Unknown purpose (S3)
The purpose of this set of five distributions is currently not known.
Battle Mode (S4)
In Battle Mode, the probability depends both on the time and on the number of balloons left. The conditions reported here are derived from the Prima Games' official guide.