Peter documented his NES playing robot build.
I recently uploaded the details of a project of mine, the NESBot, and I figured you guys might be interested. This is an arduino based bot which can play back tool assisted speedruns on the NES. If you’ve ever seen the “Super Mario Bros 3 beat in 11 minutes” video, think that, but being played back on the actual console. This bot can only handle the original Super Mario Bros currently, but it can beat it completely.
For more details on the movie played back and tool assisted speedruns in general, take a look at here
Thanks Peter! Via the contact form.