A Power Ranger, a fictional individual, "morphs" from a person into a powerful superhero — generally wearing a color-coded battle suit usually made of spandex or other skin-tight material and a helmet with an opaque visor. In many cases, the helmet serves to protect his or her secret identity. In some cases, more powerful Rangers may have extra shielding on their suit to protect them from strong blows.
A morphed Ranger generally possesses superhuman strength, durability, and ability in hand-to-hand combat. Starting with the Disney-created series, unmorphed Rangers usually possess superhuman abilities such as super-speed or teleportation unrelated to their Ranger abilities.
Rangers appear to retain their original physiology beneath their suits when in morphed form: viewers have seen Rangers' helmets removed or broken on numerous occasions, revealing his or her natural form underneath. Helmets aside, the suits are donned and removed nearly instantaneously with a glow of light or some other effect. Rangers can also be "de-morphed" involuntarily when suffering significant physical damage.
Rangers regularly operate in teams of five, with a special sixth Ranger frequently joining the team part way into the series. More recently[update] a core team of three will later expand to include additional Rangers. Each Ranger's suit and energy spectrum will match a specific color, with red, yellow, and blue joined by some combination of pink, green, black, or white. Rangers may be named after their respective colors, such as Red Ranger, Blue Ranger, etc., but numbers or other names may also be used. There is usually no more than one Ranger of a given color on a team, but exceptions of this rule are generally given alternate names. Each team's costumes are nearly identical aside from color and helmet design and perhaps a numerical designation. Any additional Rangers will regularly have additional costume modifications, usually some form of altered suit design and/or armor.