The visuals are awesome, and the atmosfear was great as well. I jumped in my chair when I suddenly realised that there were more than one enemy, so I was really captivated, and basic survival instincts kicked in from the get go.
It was a bit unclear what the actual gameplay was supposed to be, but once I died and saw the high score it was apparent that I was just supposed to stay alive for as long as possible. Perhaps that high score could be shown while playing, and counting up for as long as you are alive so you know the gameplay focus instantly.
It was also a bit unclear how it was connected to the no jumping theme, even if you could jump that wouldn't really make anything easier for the player, but with some extensions to controls, and more ways to avoid the monsters, the connection might be more apparent.
Regardless, I was blown away with the quality, and specifically the capturing of the atmosfear, in just 48 hours. Nicely done!