The use of cameras was interesting. I beat it pretty quickly apparently, but there was like a whole section on top of the map that I had yet to explore, however I kept dying there after like 10 tries.
I feel like the bullets go too crazy, they go through walls and it feels kind of unfair. Some hallways are really chaotic and I feel like the player is left to the whims of the physics world rather than needing proper skill to navigate the area. I just wish the shielding mechanic was a more controlled mechanic where it really rewards the player for bouncing stuff back.
Sometimes the camera would be pointing somewhere the player isn't. I realized it's because the player's shield can trigger the camera transition. So if you look down after moving up one screen, you can get the camera to look back down without the player being there.
Either way, I understand there were time constraint issues so congratulations on finishing! I think it's a pretty interesting concept that is open to being fleshed out more!