I like the neon-green visuals which give it that tech/computer vibe that compliments the story. The sounds also added to the creepy atmosphere. I like the combo of puzzle and horror elements.
I wish the monster would appear a bit later. He seems to appear too soon which makes the block pushing part early on kinda tricky. Maybe add something that can stun the monster or something. The image on the push block creates a bit of an optical illusion when you look at it at certain angles. They almost look like corridors due to the visual style. I don’t know if that was the intention, but I figured I’d mention it.
Overall, cool submission!