That's not the end of the demo. There are 3 levels (or maybe I included 4... I can't remember). There's also 2 ships to unlock in the demo. Also, it's better to HOLD the fire button (like it says) versus tapping the fire button. Also, the enemies not shooting you when they're off-screen is on purpose, because there's nothing funner than getting shot from off-screen, right? 😉 That's been adjusted in the final game, we'll see if people like it more. Thanks for playing and be on the look out for updates and the final release!