I Tried Vibe Coding Classic Arcade Games with GPT-5.4 (Inside VS Code)

Every new AI model release raises the same question: Can it actually build something real? So I ran a small experiment: vibe coding classic arcade games inside VS Code using GPT-5.4 , and comparing the results with a previous attempt using GPT-5.3 Codex . The rules were simple: Minimal prompting (true vibe coding) Classic games: Tetris, Snake, Pac-Man, Space Invaders Everything generated inside a .NET Razor Pages project Code must run locally , not just inside a chat sandbox In other words: real source code, not a demo trick. Watch Full Video The Setup The project shell was already created in Visual Studio Code using a simple .NET Razor Pages frontend . Why? Because it avoids: installing frameworks setting up build tools dependency chaos The AI just has to generate the games. Sounds easy… right? Flashback: GPT-5.3 Codex I had already tried this challenge with GPT-5.3 Codex . The result? Not great. Problems included: weak UI design games not working first time missing mechanics and the