Would have liked to see any theme here, the characters look very close to untouched, it feels like a prototype for a game rather than a game.
The mechanics almost work properly. After some time I cannot hold objects for longer, maybe it is intended.
There is nothing stopping me from ignoring the enemies and just rushing to the door.
I assume the last level is the one with the yellow door, as it bugs when I enter it.
It is fine for a prototype but I don't really see it as a full game. Maybe you could have used some free use assets.
Nevertheless you delivered something that works and is playable on browser in the short timeframe.
Good job!
Edit: I don't like the implementation of the limitation personally.