Simplistic and short. Pretty good for something made in two days.
To me, this feels like an extension to CORE, it has that same industrial nightmare feel to it that I absolutely love.
I feel like this is more of an experiment then a game, since it can easily be beaten in under a minute. Not that it diminishes the quality, It's really just my stupid opinion.
I think this idea can/should be expanded upon in future releases. Perhaps make the monster slightly faster or the hallway longer with more turns. Maybe make the monster scream in pain and getting angrier with every object you throw at it.
I also find this to be oddly polished for the timeframe you were given.
Not much else I can critique, all in all it's pretty entertaining and a good game if you have a few minutes to spare.
Look forward to future endeavors.
~Star
(edited to fix minor grammar issues LOL)