https://www.polygon.com/2017/9/29/16384236/youtube-nintendo-livestream-monetization

YouTube creators who participate in Nintendo’s Creators program will not be able to livestream Nintendo games from the YouTube account tied to Nintendo’s Partner program, the publisher has confirmed.

Nintendo issued an update today outlining its livestreaming policy, which now states that YouTube channels linked to Nintendo’s partner program can not stream any Nintendo game either for monetization or non-monetization purposes. Instead, YouTubers have a couple of options. The easiest, albeit disadvantageous option, instructs YouTubers to stream from a different account not associated with Nintendo’s program.