The Adventure Core, also called "Rick," is the green-eyed core whose iris appears pixellated, rather than a solid light like the other cores, in Portal 2. Besides having a proud and boastful voice, it enjoys thrills and danger, and even attempts to flirt with Chell during the final battle.
First seen hanging and swinging on a wire, in a manner not unlike that which would be expected from an archetypal adventurer coming to the rescue, he is a corrupt core that Chell uses to corrupt Wheately.
If the player holds on to him long enough, he repeatedly asks for a weapon, sings an adventure song and flirts with Chell. He will also mention "Saying a good line" and tells the player to get Wheatley to say "You've been a thorn in my side for long enough". Upon saying this, after the Factual Core is attached, Wheatley will yell this line at the player, causing Rick to answer "Yeah? Well this thorn is about to take you down! Man that sounded a lot better in my head."
It was voiced by Nolan North, who also voiced the Space Core and Fact Core.
