Booster Items can be purchased at the Team menu before a run with Rings and then are equiped onto a character to give them certain Active or Passive benefits. The effect of these Booster items is temporary and its duration will depend on the chosen playable character's level.
At the start of the game you will begin with one slot which can be used to equip a Booster item but you can unlock up to three slots into which to equip these useful items. When a Booster item has been equipped a duration indicator will appear over the character. Below is a list of the available Booster items, their effect, and how they become activated.
Magnet
Draws Rings towards the playable character. Must be activated manually.
Invincibility
Makes the playable character damage proof. Must be activated manually.
Springs
Covers all pits with Jump Springs; they stay there until the player falls and bounce on them. Activates upon starting a level.
Time Freeze
Stops time in Timed Mode levels. Available to purchase and equip only before Time Moded levels. Activates upon starting a level.