This was a fun game! At first I found the lazer mechanic a little bland, but when you started to ramp up the difficult of them it become a lot more fun. Don't be scared to challenge your players! I loved the little notes too, it's a cool way to tell a story.
I think I found a small bug with a box that has collision towards the end of the 1st level. I looked like I was supposed to move it to a specific spot, however I couldn't move behind it at all. I put an image of the part I'm talking about just in case its a bug you were interested in fixing
Great game overall! It was fun little adventure