Sure! Here's a simple game implemented as a single HTML file using JavaScript:
Brain Game
Click on the pictograms to access the other half of your brain!
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To play the game, simply open the HTML file in a web browser. You'll see a set of pictograms displayed as icons. Clicking on a pictogram will make it disappear and reveal the corresponding symbol in the "other half of the brain" area at the top. The goal is to click on all the pictograms and reveal all the symbols to access the other half of your brain!
Note that the game uses pictograms as icons (in this case, brain-related icons) to add a fun and visual element to the gameplay. You can customize the game's pictograms by modifying the `pictograms` array with different symbols.