Thanks! You know, A little more game and level design, and it could be much better. For example, make it vice versa, You see "bug" visual and should guess the "real" structure. Because it's almost impossible to find a door when it's invisible and can be anywhere.

I tried to cooperate with other people, but in the end another people helped me with generating art and writing a piece of code. I counted on initial teammates who did nothing but finding assets, even didn't replace my cubes and spheres with these assets. So, the music was left behind, while the music assets are still in the source.

Yes, the level design is random-generated. I call the game "puzzle", because levels themselves are the only obstacles/enemies in the game.
But you are right, the naive random we have now is more annoying than fun.