This game has a great concept. But, I did find some small issues.
1) The camera is sometimes misplaced. This prevents seeing some enemies. In addition, when we change rooms, the move directions change.
2) The game is too short to properly develop the character and the impact of transforms. The main character should be developed a little better. Give it a solid background. So that the player feels the real impact of the transformations. The physical transformation can be separated from the mental transformation. When we collect objects we transform the physical and when we die we transform the mind. And so, we can have several possible endings. One ending where the character becomes a man again, another where he agrees to remain a woman and one where he becomes a bimbo. The way the character walks could change depending on his mental changes to. Maybe add a level in the cellar? Add some boss?
Keep it up. With some modification the game will be perfect ^^