The game has neat controls. It feels responsive and snappy. It's most likely a matter of taste, but I'd rather have a bit more control with jumps (a bit less gravity). Also, I did know about ALS, but didn't learn much from the game: the theme feels a bit disconnected from the aesthetics you have chosen, and there is very little complementary info at the end of the game.
I mean, the idea to use a platform game is a solid starting point, as the character slowly becomes paralyzed. I think that you could have given the player a simple objective that gets harder and harder to achieve, as the movement set and character speed is being reduced throughout the progression.
Anyway, keep it up, I wanna see your next productions guys!