This is definitely a cool concept. However, there's one thing that was preventing me from really enjoying this game, and that's the lack of checkpoints or respawns when you die. You're always sent back to the title screen, which can be really frustrating.
After many attempts, I got to the loading zone into the second room, and then died almost immediately afterward. At that point I gave up. Maybe there wasn't much after that, but I was too fed up to try and find out.
Then again, I'm not great with keyboard controls, so maybe this is just a skill issue. But I would consider adding in more checkpoints.
I'll definitely try to finish the game if you fix that. I really want to see what else it has to offer, without it being too frustrating.