Thanks a lot for your nice comments. We did our best in 48 hours and we are glad that you like our game.
Regarding the use of music, we used ready-made sounds as we could not find the time to make background music in just 48 hours, we use it only for jam. Using copyrighted music in a commercially released game can cause problems. But unfortunately, we don't know much about this subject. We suggest you research this topic.
Thanks again for your comments :)