Way too long for a video (2 hours!), this should be an article. Disappointing, not really a new language - more like syntax sugar for C. It looks to me like he's not solving a problem here but just having a lot of fun creating his own language (which I agree is a lot of fun).

And just to make sure I deserve all the ire I might get: we already have a language for making games and I don't even need to write what it is because you already know :) (and that's why you know it's true)