power-up

noun
UK /ˈpaʊər ʌp/
US /ˈpaʊər ʌp/

A special thing in a game that makes your character stronger or gives it a new ability.

Mario grabbed a power-up and grew twice as big.


OTHER MEANINGS

2. The act of starting or switching on a device or machine.

The power-up of the computer took only a few seconds.

3. A temporary increase in strength, energy, or effectiveness.

The team got a power-up from their new coach.

4. In role-playing games, a spell or effect that improves a character's stats.

She cast a power-up on the whole party before the boss fight.