Nice game. For me the main complaint was about getting the angle deviation right, you could line up the shot perfectly and then miss because your timing on the angle deviation was off, which was very frustrating. There was a bit of lag between when you pressed the space bar and when the line actually stopped, so I tried to correct for that by pressing the space bar when the line was on the boundary between the yellow and green regions, but, perhaps compounded by my bad timing, that strategy didn't work as well. Sometimes I overshot, sometimes I undershot, only a few times did the line land in the centre green region. It's possible the lag wasn't constant for some reason.
Maybe my timing was just bad, but I felt like the angle deviation meter took a lot of fun out of the game because of how unforgiving it felt. I took an OBS recording of the game, and it seemed like 1. the game was running only at about 30 fps, and 2. the line only spent about 1-2 frames in each coloured region, which needed the player to be extremely precise. If you want to improve it, you could either make the line move slower, or take a cue from rhythm games on how they capture input from players between frames and interpolate it to get the position the line should be.
With that said, the graphics and audio were all well done, and the idea was interesting, though I felt it was a bit too RNG-based. Good job!