Final Fantasy X is one of the most popular video games of all time, and with good reason. The game is a masterpiece that features some of the best boss fights in the genre. Here are our top five hardest bosses in the game. 5) Cecil – Cecil is one of the most iconic characters in the Final Fantasy series, and his fight against Bahamut is no exception. This boss can be very difficult to beat, but with some careful strategy and planning, you can make it through. 4) Gilgamesh – Gilgamesh is one of the most powerful bosses in the game, and his fight against Shiva is no joke. This boss can easily take down a player if not prepared for it. 3) Yuffie – Yuffie is one of the most iconic characters in the Final Fantasy series, and her fight against Cloud Strife is no exception. This boss can be very difficult to beat if not prepared for it, but with some careful strategy and planning, you can make it through. 2) Seymour – Seymour is one of the most powerful bosses in The Game, and his fight against Cloud Strife is no joke either. This boss can easily take down a player if not prepared for it, but with some careful strategy and planning, you can make it through. 1) Leviathan – Leviathan is one of the most powerful bosses in The Game, and his fight against Tidus are sure to test your skills! Thisboss can easily take down a player if not prepared for it- but with some careful strategy and planning, you can make it through