Stardew Valley: Bouncer
The Bouncer is a guard at the Casino. You can find the Casino in the Calico Desert, but you won’t be able to enter it until you complete The Mysterious Qi quests, because the Bouncer will block the entrance.
The first quest triggers when you go to the tunnel near the old bus stop and put a battery pack in the lock-box. Inside the box, you will find a strange note from Mr. Qi. He will ask you to go to the Train Platform and put a Rainbow Shell in the box. After this, you will find another odd note from Mr. Qi. This time, he will ask you to leave 10 beets inside Mayor Lewis’ house, in his fridge. The third quest requires you to feed the sand dragon with a Solar Essence. After that, you’ll find the last note from the mysterious owner of the Casino. He will suggest you checking the lumber pile outside your house. You will find a Club Card which allows you to visit the Casino. The Bouncer won’t be a problem anymore.
If you try to pass through the Bouncer before the quests are completed, he will teleport you back and place a Mega Bomb in front of you. This bomb causes an explosion in a radius of 8 squares and causes a significant damage.
If your version of the Stardew Valley game is older than v1.04, you can to run at the Bouncer and get inside the Casino.