Wow, beautifully made—it already feels like a genuine action shooter! The visual style is great, and there’s no issue with using AI for it, provided it isn't a direct copy of something that already exists. The intro tune is catchy, though it would be nice to hear a new track for each level. I’d suggest animating the explosions in a few stages and using a heavier explosion sound effect to enhance the sense of action and combat. Maybe a boss at the end of each level? Kudos, and I hope you continue developing it further!