Use arrow keys to move around through the rooms. In the basic one, you can click the ball and get balls from it. Go down to see the shop and sell your balls. Please note that price of a ball is constantly changing, so try to get a good one! Also you can buy useful upgrades here. To the left there is a meaningless blank page(for now, it is work in progress). To your right you can see a burping monster minigame(move monster around by your mouse and burp by clicking). After some time, warnings will start to appear. When the warning appears, you must go to down right room, or you will lose the game. In this room you fight. To fight, you need battlepoints. Battlepoints can be bought in the down left room. When you fight, you choose how many battlepoints you are going to bet, and then you play stone-paper-scissors. If you win, your opponent loses the amount of battlepoints. If it is a tie, nothing happens. If you lose, you lose the battlepoints you bet. Please note that while fighting you can´t go away from fight zone. If you run out of battlepoints, you lose. If your opponent runs out of battlepoints, you win and can go away. Also you get some reward(money and battlepoints) Also note that your enemy gets stronger each time.
I took @modrapetka 's game and made it easier. Updates: Made Time to get attacked longer changed the prices for the trend