Sure! Here's a simple horror math game implemented in a single HTML file using JavaScript. Please note that this is a very basic example and can be expanded upon to make a more comprehensive game.
Horror Math Game
In this game, the player is presented with a random mathematical equation using either addition or subtraction. The player needs to enter their answer in the input field and click the "Check" button to see if they are correct. If the answer is correct, a success message is displayed. However, if the answer is incorrect, a game-over message is shown, and the horror icon changes to indicate the game is over.
You can replace the "emozi_rabbit.png" and "emozi_apple.png" with any appropriate pictograms or images you'd like to use in your game.
Remember to save the images ("emozi_chicken.png" and "emozi_rabbit.png") in the same directory as the HTML file for them to be displayed properly.
Feel free to modify this code and add more features to make it truly horrifying for a math game.