12 Days of Mario

12 Days of Mario
The inaugral 12 Days series featured the most famous Nintendo icon, Mario. The series was comprised of 17 videos, with two videos for Super Mario Bros. 3, Super Mario World, Super Mario World 2: Yoshi's Island, Super Mario Bros. The Lost Levels, and Super Mario 64. Day 12 of Mario also featured three additional players for New Super Mario Bros. Wii. The players were Noah, Jeff, and Levi.

This series also features the most viewed video on the Tenfey channel. Day 11, which featured a journey through the Smash Bros. franchise, accrued over 4,300 views as of November, 2013. Day 1 has the fourth most views, featuring the original Super Mario Bros. for over 1,000 views.