The Grinning Colossus

The Grinning Colossus is easily the hardest boss in the game. As a child, it was merely the smiling big thing. He is parented by the Cheshire Cat and Colossette (Colossus(of the X-men)'s daughter), though his father was hardly ever entirely there, often confusing him with his "Advice". This confusion drove him evil. Just because. He moved into the Small Labrynth, where he stayed in solitary confinement, first voluntarily, then, when he entered his 30s, when he became known as the "Smiling Huge Thing", because he could not get out of the house he bought. In his 60s, he entered his most famous persona, The Grinning Colossus, along with this being the time when he bought a(later fatal)chandelier. On his 65 1/2th birthday, he was faced with Indiana Kirby, who proceeded to Burn the Rope, and save us all from an unclarified doomsday device that he has. You can't find it in the museum. Just take our word for it. It's there. After his demise, he is still famous, especially known from his appearance on Greatest Athletes of Not Humans for his luge skeelz.

Fighting Style
The Grinning Colossus is skilled in eyeball laser-fu. Besides moving and looking around, THAT IS ALL HE CAN DO.

The relation to him and Grinning Colossus, without a "The".
NONE. THERE IS A "THE" IN THIS ONES NAME. COMPLETELY DIFFERENT. (Every 2nd time Indiana/Hero takes the quest, he faces this Colossus.