I've been doing a lot more research than video editing lately, so it will be a while before my video is done, but I do plan to talk a bit about the minus world and where the enemy data comes from.
Posts by 100th_Coin
And you should absolutely see Kosmic's video explaining how we pulled it off.
www.youtube.com/watch?v=bNul...
In case you haven't heard the news, we've ran arbitrary code in the Famicom Disk System release of Super Mario Bros.
It was a lot of fun helping with the research for this.
www.youtube.com/watch?v=oFLT...
I made a video about off-screen stuff on the NES!
www.youtube.com/watch?v=872v...
By the way, if you are making your own NES emulator, the test ROM (and fully commented source code) can be found here:
github.com/100thCoin/Ac...
I made a series of NES accuracy tests and then ran them on all of Nintendo's official NES emulators.
www.youtube.com/watch?v=oYjY...
My favorite optimization problem has to be completing video games, and this time I intentionally went too far.
Here's Super Mario Bros. 3 completed in five microseconds, through the power of moving NES cartridges at multiple hundreds of thousands of miles per hour.
www.youtube.com/watch?v=pK7h...