happy to see you took the steps to play the game, sorry to hear the experience didnt live up to your expectations. Yes, the onboarding could be improved, but we had to sacrifice in some areas to focus on others. and there is actually a sound track, it just gets introduced a little later in the game, after the tutorial.
tysm for the feedback, we are constantly looking to improve the game, so it really helps. the physics of the clone and jump are def things we are looking into, so stay tuned for future updates when they're improved.