Nintendo is the last of the major publishers to hold its press conference today before the E3 show floor opens. You can watch the Nintendo Spotlight and subsequent Treehouse livestreams right here, beginning at 9 a.m. PT / noon ET, along with our live reactions to the announcements.

Super Mario Odyssey and its open world gameplay are expected to be the big draw this year, in much the same way Nintendo wowed everyone last year with The Legend of Zelda: Breath of the Wild. Other likely titles to get some air time are Splatoon 2, Arms and possibly Xenoblade Chronicles 2, and the recently announced Mario & Rabbids Kingdom Battle from Ubisoft for Nintendo Switch. We may also get more on what to expect from Nintendo's paid online service launching early next year.

There should be plenty for Switch and 3DS during the show, so check it out below. You can also watch our live reactions as they happen once the show begins.