Boss is a typically difficult enemy-based challenge video game. A fight with a boss character is usually referred as a “boss battle”, characterizing with its unique music and pre-setting environmental platform. The consequences of the game will determine the player's success or failure. The game often features with increasingly difficulty as the game progresses. Progression is stopped until the player can pass this enemy and realize the end or change of this portion of the game's structure or plot.

This ultimate Boss FC version game is called “Human Weapons” with its Chief Executive Commander, John who plays a role of protagonist in this game.

This ultimate Boss FC version game is called “Second Generation Bubble Dragon.”

This ultimate Boss FC version game is called “Machinery Police.” The Murphy appears so small in this game.

This ultimate Boss FC version game is called “SD Street Fighter.”

This ultimate Boss FC version game is called “Heroic Fighting against Evil Dragon III” and this piece of work had been known as “the quintessence of human game.”

This ultimate Boss FC version game is called “Future Warrior.”

This ultimate Boss FC version game is called “Reinstalled Machinery Warrior.”

This ultimate Boss FC version game is called “Salomon Snake 3”, which had been moved to SFC, a classic STG game with higher degree of difficulty to play with.

This ultimate Boss FC version game is called “Happy Little Cooks.”

This ultimate Boss FC version game is called “Heroic Cuba.”

This ultimate Boss FC version game is called “Mega Man”, not many people have come across this game.

This ultimate Boss FC version game is called “Red Fortress”, a fantastic game you will never miss.

This ultimate Boss FC version game is called “Ghana Aircraft.”

This ultimate Boss FC version game is called “Adventurous Haunted House.”

This ultimate Boss FC version game is called “Second Generation Salomon Snake.”

This ultimate Boss FC version game is called “Adventurous Duck Tale.”

This ultimate Boss FC version game is called “Felix Cat.”

This ultimate Boss FC version game is called “Spirit Devotion of an Ice Ball.”

This ultimate Boss FC version game is called “1944.”

This ultimate Boss MD version game is called “Sword Master.”

This ultimate Boss FC version game is called “SD Final Battle.”

This ultimate Boss FC version game is called “Ninja.”

This ultimate Boss FC version game is called “Bloody Fighting.”

This ultimate Boss FC version game is called “Anger III.” In this game, a character with gun bullets could ascend to the sky.

This ultimate Boss FC version game is called “Adventurous Island.”

This ultimate Boss FC version game is called “A Boy with Three Eyes.” In this game, the role is very strong and not easy to topple him.

This ultimate Boss FC version game is called “Second Generation Torch Heraldry.”

This ultimate Boss MD version game is called “Anger of the Iron Fist.”

This ultimate Boss MD version game is called “Bright Forces.” It resembles “second generation torch heraldry”, but the minor difference here is the dark dragon has three heads.

This ultimate Boss FC version game is called “First Generation Squirrel Battle” with the cat appears as an awful Boss.

This ultimate Boss FC version game is called “Special Rescue Command.” It was rated as difficult as “Mega Man” video game in Japan at that time. Again, not many people have come across this version of game.

This ultimate Boss FC version game is called “Blue Shadow Warrior.”

This ultimate Boss FC version game is called “Ninja Cat.”

This ultimate Boss MD version game is called “Ancient Renesas- 2nd generation.”

This ultimate Boss MD version game is called “Second Generation of Dinosaur Brothers.”

This ultimate Boss MD version game is called “Bright Forces 2- Ancient Seals.”