I looked for what you meant when you said that sometimes the controls are not working and i founde the problem. If you start a game and then pause it with esc and go to main menu, if you press start again you are still paused and you need to press esc again to unpause. Unfortunatly I missed this problem when testing. For the shop problem i can't find it... if you press E and open the shop, to close it you need to press again E, every time i try i works. Is there a specific instance where you can't close it anymore? I'd like to know where is the problem to learn from my mistake. Thanks a lot for the feedback!