Also a Ninjadever. Daeken's blog post was one of the inspirations that led us to implementing this in our toolchain. p01's Matraka [1] was another. The PNG trick is pretty common in the js scene nowadays, with packing tools such as JsExe [2] readily available.
Oh man, I didn't know you guys released your tools. I'm a big fan of your stuff -- awesome to see such polished prods on the web. Happy to have helped enable some amazing work!
You can see the final packed .PNG results here: Crankwork Steamfist https://stianj.com/crankwork-steamfist/, Everything is Fashion https://stianj.com/fashion/, and Inakuwa Oasis http://arkt.is/inakuwa-oasis/.
The tool used for creating both the demos and the packed .PNG is made by us and available on GitHub here https://github.com/ninjadev/nin/.