Conclusion: What you do in the demo? Yeah, it's pretty much the entire game. The enemies never get different or smarter, there are just more of them. The gameplay never changes, kill the little jellyfish, fight guardian, straffe, straffe, kill guardian, kill little jellyfish. "Power UP Forever"? Not so much. You Power Up for about 10 levels, then you cap out. And the power-ups are visually lame compared to real powerup shooters like Gradius, Section Z, SideArms, or Omega 5.