Board Thread:Boruto Discussions/@comment-25319479-20181221063423/@comment-6036561-20181221120325

Sarutobii2 wrote: Given there isn't pigmentation underneath his eyes, i don't think it's Sage Mode, though i wouldn't be surprised if he's a user.

Well, but if I'm not wrong we don't actually see the part under his eyes... we only see the eye itself, and it seems to have the horizontal pupil Naruto and Jiraiya have in Sage Mode.

If it is indeed Sage Mode, it's even more likely that there is a second "tribe" of toads, because I really don't see Gamamaru allowing a bad guy to learn Sage Mode