Google has released several challenging and engaging Doodle games over the years. While opinions on difficulty can vary depending on individual skill levels and preferences, one of the most well-known and challenging Google Doodle games is "Google Doodle Soccer" (also known as "Kick with Chrome").
Released during the 2012 London Olympics, "Google Doodle Soccer" allowed users to play a mini soccer game directly on the Google homepage. The game featured a simple yet addictive mechanic where players had to control their player and score goals by timing their kicks correctly. As the game progressed, the difficulty increased with faster opponents and more complex obstacles.
Another notable challenging Google Doodle game is "Google Doodle Halloween 2016." It was a multiplayer game where users could compete against each other as ghosts in a race to collect the most wandering spirits. The game required quick reflexes, strategic planning, and precise control to outmaneuver opponents and collect as many spirits as possible within the time limit.
It's important to note that Google has released numerous Doodle games over the years, each with its own level of difficulty and unique gameplay mechanics. The difficulty of a Doodle game can depend on factors such as the player's familiarity with the game's mechanics, their skill level, and their previous gaming experience. Ultimately, the hardest Google Doodle game is subjective and can vary from person to person.