Street Fighter II: The World Warrior - After every third match in the single player mode, the player will participate in a bonus stage for additional points. The bonus games includes (in order) a car-breaking event similar to another bonus round featured in Final Fight; a barrel breaking bonus game where the barrels are dropped off from a conveyor belt on the top portion of the screen; and a drum-breaking bonus game where drums are flammable and piled over each other. Like in the original, the game's controls uses a configuration of an eight-directional joystick and six attack buttons. The player uses the joystick to jump, crouch and move the character towards or away from the opponent, as well as to guard the character from an opponent's attacks. There are three punch buttons and three kick buttons of differing strength and speed (Light, Medium and Heavy). The player can perform a variety of basic moves in any position, including grabbing/throwing attacks, which were not featured in the original Street Fighter. Like in the original, the player can perform special moves by inputting a combination of directional and button-based commands. Street Fighter II The World Warrior differs from its predecessor due to the selection of multiple playable characters, each with distinct fighting styles and special moves. Combos were also possible. According to IGN, "the concept of combinations, linked attacks that can't be blocked when they're timed correctly, came about more or less by accident. Street Fighter II's designers didn't quite mean for it to happen, but players of the original game eventually found out that certain moves naturally flowed into other ones". This "combo" system was later adopted as a standard feature of fighting games, and was expanded upon in subsequent Street Fighter installments.