Sure! Here's a simple game called "Monster Trucks vs Crabs" implemented as a single HTML file using JavaScript:
You can copy and save this code into a `.html` file and open it in a web browser to play "Monster Trucks vs Crabs" game. The game is played by controlling the blue monster truck using the left and right arrow keys to avoid the red crabs and score points by colliding with them. The score is displayed on the top left corner of the canvas. Have fun playing!