In computer and video games, power-ups are objects that instantly benefit or add extra abilities to the game character as a game mechanic. This is in contrast to an item, which may or may not have a benefit and can be used at a time chosen by the player. Although often collected directly through touch, power-ups can sometimes only be gained by col... Found on http://en.wikipedia.org/wiki/Power-up
An item that gives you special abilities or makes you more powerful. Power-ups sometimes only last for a limited time. Found on http://videogamecritic.com/glossary.htm