Board Thread:Theories and Speculation/@comment-1512913-20150221101637/@comment-25549954-20150221140328

1. Yes, perhaps she has the Rinnegan but it was not shown, Infinite Tsukuyomi is a Rinnegan Genjutsu, her Rinne Sharingan works like Sasuke's Rinnegan, If Sasuke can produce Amaterasu from his Rinnegan which is a MS technique without switching, perhaps she can do the same, may be she has Rinnegan in her Rinne Sharingan and she was able to cast techniques without switching. She may also have the Tenseigan but I guess Tenseigan requires more chakra as seen from the Last movie Toneri's Tenseigan fades away and he was not able to use it, so that's why she resorted to normal Byakugan and Rinne Sharingan. The Rinne Sharingan is more Sharingan than a Rinnegan and so I think to cast genjutsu, sharingan is required and to cast it on large population Rinnegan is required and she had both in one eye.

2.The Rinnegan reflection in eyes could be because of Rinnegan, it is the main factor in controlling every person, similar case could be said for Nagato or Obito controlling everyone with chakra receiver and they have Rinnegan in their eyes, they can use its techniques and for combined field of vision. So that is why everyone has Rinnegan reflected in their eyes but here instead of chakra receiver its the moon that is channeling the chakra.

3. My guess is that Sasuke's Rinnegan is because of Kabuto's modified Hashirama's cell and Hashirama's chakra, Kabuto's intention was to heal Sasuke and Hashirama gave him his remaining chakra, so his Indra's chakra + Asura chakra was the result he got the Rinnegan and also meet Hagoromo who split his powers and gave each of them his half. So he has eyes of Hagoromo, and I think Hagoromo also had those eyes with Six tomoe.

The tomoe thing is bit complicated though, in the series every time an Uchiha experience loss / separation from a person they gain some tomoe and when they experience death of close friend they awaken Mangekyou Sharingan. This could be because of build up of chakra, and every MS user could use yin yang release techniques such as Izanagi which is derived from Creation of All Things techniques from Rinnegan. And I believe the Rinnegan is somewhat devolved form of Sharingan and that is why Madara was able to switch it back and forth during the war, and also Indra's Mangekyou doesn't have tomoe but spiral pattern like a Rinnegan. I also believe Rinnegan with tomoe is powerful than Rinnegan without tomoe.

I have noticed in one scenario in chapter Kaguya's tears, her Rinne Sharingan tomoe (one set) disappears and reappears when she says "I hate you", I think the tomoe definitely has some connection with the Curse of Hatred.

I have one theory and that is I believe Hagoromo had completely different eyes probably Rinnegan with tomoe and they also switch red/purple in colour and it was because of Ten-Tails, the Ten-Tails had some hate because she was sealed inside her sons and wanted chakra back so Rinne Sharingan is red in colour. After it was removed and separated we see purple colour Rinnegan without any tomoe.