Softlock

In Street Fighter II, a feature called "Softlock", is available to arcade players. It can be triggered when the time is up. In order to do the glitch to trigger Softlock, the player must do a certain combination.

The Softlock freezes and breaks the game. The game is then unable to be played until the game is reset.

Invisible Dhalsim Softlock
To do this Softlock, a player using Dhalsim must do a move called "Yoga Fire" before the fireball shoots out. The player must hit a kick button, after the kick button has been pressed, Dhalsim is invisible. The opponent can hit Dhalsim in order to break him out of invisibility.

If time runs out after Softlock is done, the game is broken, and nothing happens. The background keeps moving, but no events are happening, and you cannot move your character.

E. Honda Car Softlock
E. Honda has a certain attack which can cause Softlock if it is used on the car. E. Honda will have to leap backward facing the opposite direction (eg. if going on left side, Honda faces left, Honda jumps right, etc.). If performed at the perfect angle, then the car will continuously bounce with Honda staying in the air. Honda cannot do anything in a single player game. When time runs out, the game goes into Softlock and the game has to be reset before it is able to be played again. But the car is still bouncing and Honda is still pumping the car.

The Stance w/ Handcuffs Throw
Guile is the glitchiest character in SFII. If Guile does a upside down click transitioning into a flash kick, Guile will be in a certain stance. Guile can be hit out of the stance, but cannot do any moves. If Guile does a medium throw transitioning into a flash kick, the opponent will eventually follow Guile around. If both are activated, the game will triggered and be stuck in Softlock. Guile and his opponent cannot do anything, which is the Softlock. If Guile gets the opponent out of the handcuffs throw (in which the opponent follows Guile around), the game is stuck in Softlock. There is no time limit and the characters/fighters can keep going.