power-upnoun
uk/ˈpaʊərˌʌp//ˈpaʊ.ɚˌʌp/plural power-ups[ U ] the process in which something that needs energy or power to operate is turned on and prepares for use:
The first power-up of any laptop may require you to make choices.
[ C ] extra abilities in a computer game, that you can earn or buy :
The player also can attract various power-ups, or game bonuses.