Doom running in Windows Notepad at 60 fps

Samperson hacked Doom and Notepad together somehow and recorded the results running at a glorious 60 frames per second. Questions abound; answers are forthcoming.

i'll release it soon. doom inside of notepad. simple as.
– the footage is not sped up
– i have not modified the code of notepad.exe at all
– this is fully playable interactive live, zero fakery. this is exactly what it looks like.
– this is your fault