Roar_Of_War on 03 February 2017
This likely happened so fast because Zelda spread itself between tons of videos and gameplay footage, and all Mario has is one single video. There's only this single trailer for Mario if you wanna see the game, unlike BOTW. It's also impressive to me that BOTW has an additional 7 million+ story trailer that will eventually probably make it to 10 million views as well.
Still, can't take away from how good Mario looks as well. Mario and Zelda are back at the top again baby lol
