It is simple and executed well! but realistically it doesn't have much going on. There's no story, I'm not really understanding the idea of a "loop" here, especially when the trail is bugged and doesn't load after the gameplay starts.
Mouse movement is very janky for a dodge based game, I think WASD or arrow keys would've been a better implement for this game. I also would've liked to see more visuals / colour introduced into the game. Otherwise visually its quite boring to look at. There's no variety in enemies, no particle effects etc.
A couple seconds of gameplay was all it took for me to get the idea of the game and didn't really gave me a reason to keep playing. I understand its supposed to be a "high score" game but there's no real reward, and it seems like its either super easy to get a high score or difficult to get a high score for certain people. I noticed in your reply to someone who got 30 points quite easily defeats the purpose of your game which I think is a flaw in of itself as it should get more challenging for people who are good at dodge based games or games in general.
All in all its still a good game but could be a bit more polished.