After the intro, I pressed the spacebar once and I couldn't move anymore. Also, try not to compile tyour game into an installer, it typically leaves worse scores. That being said, I think it's a quite creative spin on the "only one"theme.
You should be able to move after finisohing all the text, i did it on purpose but after a lot of feedbacks i think that was a mistake. Definitely wont make it again. Thanks for playing and making me better at developing games!