This is cool and all but all these AI hype demos always show something extremely simple and overdone in the training data. Reminds me of those ChatGPT videos where someone writes "make me Pong in javascript" and gets surprised that it does despite the fact that it probably trained on 100,000+ Pong in Javascript scripts.
Yes, it made Breakout, very cool. Now ask it to do something new or make a game that's more complicated than a game that's been remade a million times. LLMs are very far away from making real games.