I pretty much agree with what everyone else said. The movement and combat was fun, with the dodge roll being very useful. The axe enemies are probably a little too hard like people said, although there's a pattern to beat them (one quick attack, then roll as soon as they start to attack). It was harder because they would get a double hit on you sometimes. The bandages helped make it more fair, but they should probably deal a little less damage. The room with 3 enemies is definitely too hard.
I had the same problem with the interact button usually not working when trying to open doors, and I couldn't make elevators work at all. That seems like the most important thing to fix. There was also some weird physics. At one spot an enemy attacks while you're climbing a ladder towards it, and when it jumps down the ladder shaft, it sits on top of your head while you climb! There is also a gap that you can get across by mashing the roll and jump buttons, and I'm not sure you were supposed to be able to cross the gap, because it was a weird maneuver that didn't seem intentional.
Not a bad start though, and I wish you luck on expanding it!