No indeed no indication in the progression, as I only had time to implement 8 levels in 1 week, I think the game would have been too simple. But for a next version with more levels it would be possible, like a visual mention of the approach of the asteroid, very good idea ! I voluntarily didn't put any sound design (timer or other) in the "blind" mode because I thought it would interfere with the sounds to identify to progress, but I'm waiting for some feedback from the players to move forward on this part of the project with pleasure :)