Michael Khanh Artiaga (born November 20, 2007), known online as dogplayingtetris or simply Dog, is an American Tetris player from Texas.

From a young age, Michael and his brother Andrew Artiaga experimented in coding, computing, and gaming, alongside their father, who was a web developer.

Practicing classic NES Tetris occasionally on their Game Boy, both brothers were inspired to pursue the game further after seeing 16-year-old Joseph Saelee's victory against the 37-year-old reigning champion Jonas Neubauer in the 2018 CTWC, marking the beginning of a new generation of Tetris players to the competitive scene.

[3][4] Artiaga and his brother practiced the skills they learned by creating characters and music for several of his father's gaming apps.

[3] Artiaga stated in an interview with The Guardian that his school work takes precedence over his gaming, and that math was his favorite subject.

[5] In December 2019, Artiaga became the youngest person to complete a "maxout", a point in the game where the score becomes so high it no longer registers correctly on-screen.

[7][10] After beating fellow competitor Jacob Huff (known online as "Huffulufugus"),[9] Michael made it to the final round with his brother Andrew, where they competed against each other at home due to COVID-19 restrictions.

[3] Michael won shortly after reaching level 29, winning $3,000, which he used to buy a real Nintendo Entertainment System (NES), a Donner guitar, an electric drum set, and invest in cryptocurrency.

[19] Artiaga, who had live streamed the game on Twitch, celebrated by putting his hands on his head and exclaiming "Am I dreaming, bro?"

[20] Unlike the majority of his competitors, Artiaga continued to utilize hypertapping as late as during the 2021 CTWC;[8] his handling of the controller in that competition was referred to by The New York Times as one "with the breeziness of a cocktail pianist".