Hello, I am the level designer. Thank you for playing our game and giving all this feedback. We had fun making the game but we had only 1 day because we were busy the rest of the time which did put a lot of pressure. The game indeed needs to be brighter. I guess I didn't notice because my monitor's brightness is too high :/. This is a shame because this leads to some people having a bad experience. We were going to add brightness slider but we ran out of time. About the difficulty, Vulpes did say multiple times that it was really hard and I tried to make it easier but I couldn't test it myself because it was not hard for me and he was busy but if we continue working on this project I will definitely try to make it easier at least at the start.