Hey decent game!
Some feedback: Game design-wise, part of me doesn't like the guessing part of this game since it's just waiting and the payoff for my patience is most likely they will push the button. I tried to figure out if certain items could be used for specific people to force them not to push the button at all but it doesn't seem like that's the case. I put on the glasses and used the gun and realized the gun increments the retry interval? My main feedback is I'd consider letting the player have the glasses as a permanent item to let them track their opponent's frame of mind. Then the other items can be used more like a resource management/stamina bar system to optimize your opponent's level of stress. It wasn't clear to me how to strategize since sometimes the opponent would just press the button in round 2 or 3 so that kinda defeated any sort of planning I had.
Besides that, environment was good, art was unique, shopkeeper was a spooky man.