Thanks!
Originally,
1. I wanted the player to die at least once
2. So their ghost would appear that the player can interact with like an NPC
3. NPC will tell the player that the ghost failed to defeat the boss and then give the player an upgrade so player could clear the game easier
4. Hence, revolution?
Yeah the getting killed off screen was because the color of the enemy bullet is too close to the floor or wall color, maybe that's why you didn't see the bullet coming