Thanks for playing and thanks for the feedback! I am not sure if something was wrong or if you've discovered some bugs, because the game does pause on the upgrade screen. And the vacuum does play a sound effect when it sucks - I recorded my actual vacuum cleaner but I had to modify it quite a bit to make a sound effect that wasn't just super annoying haha. If you're not hearing it then maybe there is something wrong. I'm sorry! One thing I know is an issue is when you get to the trash can the level up menu does not pause your invincibility timer, so if you get hit while going into the menu, you'll get hit one more time after you leave. But I am pretty sure you shouldn't get hit while you have it pulled up. If you can reproduce any of these issues I'd like some more information so that I can fix them later!