1. Psycho Mantis Metal Gear Solid
And we have reached the end of our list… Psycho Mantis. The battle with him in Metal Gear Solid is the most memorable boss fight in the entire series. This fight tests the player’s mind and pushes their critical thinking skills to the max — at least until Campbell calls you with a hint. We start the battle with him reading your memory card and telling you what you have been playing. During the battle, he takes control of Snake and turns the screen, displaying the now famous “HIDEO” in the corner. The only way to have beaten him was to switch your controller port whenever he took control of Snake. This fight broke both the player’s mind and the fourth wall of the narrative. It will always be my number one choice when it comes to Metal Gear bosses.