Items such as Respawn Tickets, EXP Tickets, etc., that affect your status over a set period of time may be used from the ITEM menu inside the garage.
You cannot use more than one of the same type of item at the same time.
If you want to use an item of the same type as one that is already in use, cancel the first item's status effect from your profile before using the second one.
You want to use a Respawn -50% Ticket Gamma (shortens respawn time by 50%), but you are already using a Respawn -30% Ticket (shortens respawn time by 30%).
Cancel the effect of the Respawn -30% Ticket in your profile before using the Respawn -50% Ticket Gamma.
When you use an item meant for a single robot, you will be able to select which robot to use it on from the item window.
Robots under the effect of an item will be marked with a star.