Editing Power-up (section)

===Selection bar===
[[File:Gradiuspmeter01.png|thumb|''Gradius'' selection bar]]
Instead of having players collect a power-up that is instantly activated, the players may be allowed to select which power-ups they want to use. This is commonly implemented through a 'selection bar' which contains a number of power-up effects. To access the bar, the player must collect power-up items; the more they collect, the further along the bar they can access. The more powerful power-ups are traditionally placed further along the bar, so that more effort is required to obtain them. The selection bar was first used in [[Konami]]'s 1985 game, ''[[Gradius]]''.<ref name="gradius"/>