Such Easter eggs very not easy to find, because not every user of Chrome browser looks into the Console developer tools.
To see the Easter egg:
- Open the Settings of the Chrome browser.
- In the Languages section, select English.
- After that, in the google.com search, enter ext adventure.
- On the search results page, open the developer tools by pressing F12or a keyboard shortcut Ctrl + Shift + I.
- Select the Console tab.
You will see a bright yellow-orange Warning! with a proposal to play a game. Enter yes. A preface and a description of the rules of the game will appear.