Yeah that was kinda the goal. It's a small boss like some of the Star Ocean series ones that are ultra fast and not always in-screen.
Most game enemies moves towards you but at different rate/speed, but this boss has some patterns he does from time to time like circling around while plenty of projectiles goes through the map (which loops, btw).
Also the attack is some sort of electric attack which damages all enemies surrounding you (although sometimes it can miss, such as against those green monsters in Quebec City East Side)
What I want to try at one point is make a picture appear every frame right on top of one specific event, but I'm unsure if that's possible in RPG Maker 2003. That would allow me to have some bosses that are much larger.
EDIT: Also the boss is much easier to see at 60 FPS (which is what the game runs at). For some reasons, though, Youtube doesn't support 60 fps videos that aren't 720p 16:9 or higher.