From Youtuber Michael Birken:

This stop motion tribute to my 2 favorite old school arcade games is based on actual recorded game footage. The recordings were printed out, one frame at a time, and transferred by hand to various walls around my office floor using thousands of Post-It Notes. The process consumed weekends and holidays for the past 11 months. Changing background scenery was masked out and replaced with 1 consistent frame throughout the animation, producing an eerie stillness amid the moving images on the walls.

[Michael Birken | Via]