Nice little maze game but personally I am not a fan of using a maze as a game mechanic.
The player collision box might be too big and it makes some passage unable to enter. When getting to the goal, there is 2 songs playing which makes the game very noisy, especially when they are off tempo.
Like the masking shader for the fog but I think it needs to be re-thought on the implementation. If the dither light is more refined, it would be nicer.
Overall nice attempt.