Board Thread:Questions and Answers/@comment-25051789-20140627010334/@comment-25051789-20140627020307

Darkhunter-X wrote: Kiyuna wrote: Guess that's meant to show that he's powering up/ using alot of reiatsu. Like, his reiatsu is blue, so his eyes turn blue, duh. I'm not exactly sure but i think when Kenpachi used his yellow reatsu his eye were yellow too.

This

Doesn't after that he normally go bankai/release a brust of resiatsu followed by a GT that is more powerful then before?

So my guess is like Kiyuna is he is powering up. Interesting. That's far from my own theory. My guess was that, everytime his eye glows like that, Ol' Man Zangetsu tells him something or does something to Ichigo.