Power Copying is a technique used in multiple tokusatsu shows. It refers to when a hero or villain can change into previous heroes and use their powers., usually in an anniversary series or film. This is typically accomplished through some sort of collectible device. The first such character was Great Leader JUDO of Kamen Rider Spirits, who could change into any of the previous nine Showa Riders, aside from Riderman. The first live action example was AkaRed, who could change into any of the leading Sentai Reds. Other examples of this technique are Kamen Rider Decade for the Kamen Rider series, the Gokaigers for the Super Sentai series, Ultraman Ginga for the Ultra series, and the Mega Rangers for Power Rangers.