AtomicMari is the personal channel of Mari Takahashi. It was launched on January 1, 2013. AtomicMari does not have either a schedule or a certain video guideline. In the opening video, Mari stated "...perhaps where this channel is going isn't really clear cut just at this moment,". The channel currently has only 250,000+ subscribers and less than 20 videos.
- Mari's channel has a range of topics covered in her videos, from vlogs to dance videos to mail time and tags. She also has two basic Japanese lesson videos up, titled "Japanese Quicki"
- Most of the Smosh Games crew were featured in her "Quicki" videos, including Sohinki, Jovenshire, Lasercorn, and Wes.