Hey Arseny_Gar, Thanks for playing our game. We are in the process of improving this game & we will make the instructions more clear. We aren't making a tutorial as it is a relatively short game. The combat system is being revamped to something more dynamic & enjoyable. The pause menu had a bug which causes that glitch. We identified that bug & fixed it but not in the jam submitted build. Thank you for your feedback & compliments. And keep a lookout for our next version. Take Care! :)