It took me so many time to understand how to play. You may add a better tutorial screen it's important if you want players to not quite your game imediately. It took me more than 5 minutes to be able to just launch a party.
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When you click on the buttons it should not shoot, it should do what the button does. I agree tho, the unlock/lock is confusing in the main menu, but in the game its there so you dont accidentally hit the button back to menu while playing. For now I edited the game page to be a bit more helpful on this, will fix this after voting period.