Original take on the theme ! Really fit the theme. That being said, difficulty curve is too steep (happen to a lot of game, like mine), so the player can learn the mechanic gradually. Also, the time slow seem to affect velocity so that you no longer die when hitting a wall (always died at base speed before). So should check that out, maybe ? If not done on purpose.
The visual is serviceable, but the music and sfx are very well integrated. Overall good job !