power-up
pow er-up |ˈpaʊ (ə )r əp | ▶noun the action of switching on an electrical device, esp. a computer. • (in a computer game ) a bonus that a player can collect and that gives their character an advantage, such as more strength or firepower.
power-up ▶noun 1 [ mass noun ] the action of switching on an electrical device, especially a computer. 2 (in a computer game ) a bonus which a player can collect and which gives their character an advantage such as more strength or firepower.