[KamenRiderOOO]

Quote:

Originally Posted by GoseiWonder

Did Gokaiger ever explain that? Or was that just "Green and black are... Um... Hey kids, look at the badass pirates!

Actually, there whole reason Green could become Black Rangers was because of the counterpart set up. Green would go to Green, but if there wasn't a Green, he'd be Black.

Example:
Himitsu Sentai Goranger (Each Number Represents the # on the helmet):
GokaiRed- AkaRanger (1)
GokaiBlue- AoRanger (2)
GokaiYellow- KiRanger (3)
GokaiGreen- MidoRanger (5)
GokaiPink- MomoRanger (4)

Goggle V:
GokaiRed- GoggleRed
GokaiBlue- GoggleBlue
GokaiYellow- GoggleYellow
GokaiGreen- GoggleBlack
GokaiPink- GogglePink

And when there wasn't a color counterpart (or if the ranger with the same color was actually a 6th ranger,) they went with number placement.

Ninpuu Sentai Hurricaneger
GokaiRed- HurricaneRed
GokaiBlue- HurricaneBlue
GokaiYellow- HurricaneYellow
GokaiGreen- Kabuto Raiger
GokaiPink- Kuwaga Raiger
GokaiSilver- Shurikenger

Bakuryuu Sentai Abaranger-
GokaiRed- AbaRed
GokaiBlue- AbareBlue
GokaiYellow- AbareYellow
GokaiGreen- AbareBlack
GokaiPink- N/A
GokaiSilver- AbareKiller (due to being the "6th")

However, each one of them could turn into whatever ranger they wanted.