This lets players to do away with equipment they never use, such as secondary weapons, and replace those things with extra perks or attachments. (darkstation.com)
Nothing about the variety of secondary weapon functions or the significance of various kinds of enemies is ever truly explained. (thekoalition.com)
Some bosses even have secret weak - points, and players may sometimes need to choose the right secondary weapon in order to beat a certain boss easily. (nintendaily.com)